The Italian Catholic diocese of Todi existed until 1986, when it was united into the diocese of Orvieto-Todi. Up until that point, the diocese had always been directly dependent on the Holy See.
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During the Gothic War the city of Todi withstood Totila during a long and severe siege. The Lombard failed to capture it, and Todi and Perugia remained the two chief fortresses defending the passage through the duchy from Rome to the Exarchate. It was included in Pepin's donation to the Holy See.
Other bishops are:
- Guglielmo Dallavigna (1405), who tried to induce the antipope Benedict XIII to renounce his claim;
- the brothers Cardinal Filippo Antonio Gualterio (1709) and Ludovico Anselmo Gualterio (1719), who erected a new seminary;
- Francesco M. Pasini (1760), under whom the restoration of the cathedral was completed.
Chapter and cathedral
The cathedral was also a parish church.
The Chapter of the cathedral of the Annunciation in Todi consisted of two dignities (the Provost and the Archdeacon) and twelve Canons, each with a prebend (assigned income). In addition there were eight mansionarii and other clergy. In 1673 and in 1746 there were two dignities and twelve Canons.
Bishop Angelo Cesi (1566–1606) presided over a diocesan synod in 1576, and published its constitutions, as well as those of earlier synods, including one of Bishop Andreas de Aptis (1356–1373).
A diocesan synod was held by Bishop Pietro Maria Bichi (1658–1673) on 22–24 May 1662, and another on 16 April 1668. Bishop Giuseppe Pianetti (1673–1709) held a diocesan synod in Todi on 27—29 April 1678.
Bishop Francesco Maria Gazzoli (1805–1848) held a diocesan synod on 1–2 May 1818.
Reorganization of dioceses
In a decree of the Second Vatican Council, it was recommended that dioceses be reorganized to take into account modern developments. A project begun on orders from Pope John XXIII, and continued under his successors, was intended to reduce the number of dioceses in Italy and to rationalize their borders in terms of modern population changes and shortages of clergy. The change was made urgent because of changes made to the Concordat between the Italian State and the Holy See on 18 February 1984, and embodied in a law of 3 June 1985. The change was approved by Pope John Paul II in an audience of 27 September 1986, and by a decree of the Sacred Congregation of Bishops of the Papal Curia on 30 September 1986. The diocese of Todi was united to the diocese of Orvieto. Its name was to be Dioecesis Urbevetana-Tudertina. The seat of the diocese was to be in Orvieto. The former cathedral in Todi was to have the honorary title of co-cathedral, and its Chapter was to be called the Capitulum Concathedralis. There was to be only one episcopal curia, one seminary, one ecclesiastical tribunal; and all the clergy were to be incardinated in the diocese of Orvieto-Todi. The territory of the diocese was to be the same as the two dioceses combined.
Bishops of Todi
- Cresconius (attested 487–502)
- Fortunatus (mid-6th cent.)
- Laurentius (attested 649)
- Bonifatius (attested 680)
- Anonymous (743)
- Joannes (attested 1015)
- Gregorius (attested 1037)
- Laurentius (attested 1117)
from 1200 to 1500
- Bonifatius Colmezzo (1218–1238)
- Jacobus Ghezzi (attested 1238, 1249)
- Jacobus Azzi (c. 1250–1252)
- Petrus Gaetanus (1252–1276)
- Bentivenga de Bentivengis, O.Min. (1276–1278)
- Angelario de Bentivenghi, O.Min. (1278–1285)
- Nicolaus (1282–1296 ?)
- Nicolaus Armati (1296–1326)
- Rainuccio de Aptis (1326–1356)
- Andreas de Aptis (1356–1373)
- Stephanus Palosii (1373–1382) (Avignon Obedience)
- Andreas de Aptis (1382–1384) (Avignon Obedience) Administrator
- Stephanus Palosii (1384–1395) Administrator
- Antonius de Calvis (1395–1405) (Roman Obedience)
- Guilelmus Dallavigna O.S.B. (1405–1407) (Roman Obedience)
- Franciscus de Agello (1407–1424)
- Angelus Scardoni, O.E.S.A. (1425–1428)
- Antonius of Anagni (1429–1434)
- Bartolomeo Aglioni (1435–1472)
- Constantin Eruli (1472–1474)
- Francesco Mascardi (1474–1499)
- Basilio Mascardi (1499–1517)
from 1500 to 1800
- Aldericus Billioti (1517–1523)
- Federico Cesi (1523–1545)
- Giovanni Andrea Cesi (1545–1566)
- Angelo Cesi (1566–1606)
- Marcello Lante della Rovere (18 Dec 1606 – 6 Oct 1625 Resigned)
- Lodovico Cinci (6 Oct 1625 – 19 Sep 1638 Died) 
- Ulderico Carpegna (11 Oct 1638 – 31 Aug 1643 Resigned) 
- Giovanni Battista Altieri (seniore) (31 Aug 1643 – 26 Nov 1654 Died)
- Gerolamo Lomellini ( 1654 – 1656 Died)
- Pier Maria Bichi, O.S.B. (18 Mar 1658 –1673)
- Giuseppe Pianetti (17 Jul 1673 – Feb 1709 Died)
- Filippo Antonio Gualtieri (14 Oct 1709 – 5 Dec 1714 Resigned)
- Ludovico Anselmo Gualtieri (21 Jan 1715 – 15 Jul 1746 Died)
- Gerolamo Formagliari (28 Nov 1746 – 6 Jun 1760 Resigned)
- Francesco Maria Pasini (21 Jul 1760 – 24 Dec 1773 Died
- Tommaso Struzzieri, C.P. (18 Dec 1775 – 21 Jan 1780 Died)
- Giovanni Lotrecchi (20 Mar 1780 – 10 Sep 1800 Died)
- Francesco Maria Cioja (1800–1805)
- Francesco Maria Gazzoli (1805–1848)
- Nicola Rossi (1848–1854)
- Giovanni Rosati (23 Mar 1855 – 9 Mar 1882 Resigned)
- Eugenio Luzzi (27 Mar 1882 – 19 Feb 1888 Died)
- Giulio Boschi (1 Jun 1888 –1895)
- Giuseppe Ridolfi (29 Nov 1895 –1906)
- Giovanni Graziani (16 Oct 1906 – 7 Nov 1915 Died)
- Luigi Zaffarami (6 Dec 1915 – 10 Feb 1933 Resigned)
- Alfonso Maria de Sanctis (10 Aug 1933 – 8 Nov 1959 Died)
- Antonio Fustella (15 May 1960 –1967)
- Virginio Dondeo (12 Jul 1972 – 6 Aug 1974 Died)
- Decio Lucio Grandoni (12 Dec 1974 –1986)
- 30 September 1986: the diocese of Todi was united with the Diocese of Orvieto to form the Diocese of Orvieto-Todi. It ceased to exist as an independent bishopric.
Notes and references
- "Diocese of Todi" Catholic-Hierarchy.org. David M. Cheney. Retrieved February 29, 2016
- "Diocese of Todi" GCatholic.org. Gabriel Chow. Retrieved February 29, 2016
- Ughelli Italia sacra I, p. 1349, additional note by Coleti (where "canonici 21" is an obvious printer's error.
- Ritzler-Sefrin, Hierarchia catholica V, p. 394 note 1; VI, p. 421 note 1.
- Angelo Cesi (1576). Constitutiones synodales Ecclesiae Tudertinae, tam antiquae sub D. Andrea, & aliis vetustioribus Episcopis: quam nouae sub perillustri, & reuerendiss: D. Angelo Caesio Episcopo Tudertino promulgatae: nuper vero iussu eiusdem ad communem vsum suorum diocesanorum in hanc formam editae (in Latin). Perugia: ex aedibus I.B. Rastellij.
- Pietro Maria Bichi (1662). Synodus dioecesana habita per illustriss. & reuerendiss. dominum d. Petrum Mariam Bichium Senensem episcopum Tudertinum ann. sal. 1662. 11.10.9 Kal. Iun (in Latin). Todi: apud Augustinum Faustinum.
- Giuseppe Pianetti (1679). Constitutiones promulgatae per illustriss. et reuerendiss. dominum D. Iosephum Planectum episcopum Tudertinum, in eius dioecesana synodo celebrata 5. 4. 3. Kal. Maii 1678 (in Latin). Todi: apud Vincentium Galassium, impress. episcop.
- F. M. Gazzoli, Synodus diocesana habita per Ill.mum et R.mum Franciscum Mariam Gazzoli interamnensem episcopum Tudertinum in ecclesia cathedrali diebus prima et secunda maii anno salutis MDCCCXVIII, Foligno 1818.
- Directoriae normae clare a Concilio impertitae de dioecesium recognitione; indicia atque elementa apta ad actionem pastoralem aestimandam ab episcopis suppeditata quibus plurium dioecesium regimen commissum est.
- Acta Apostolicae Sedis An. et Vol. LXXIX (Città del Vaticano: Typis Polyglottis Vaticanis 1987), pp. 811-814.
- Lanzoni, p. 425. The notion that he was martyred under Hadrian derives solely from the Capua Breviarium (prayer book), which is a devotional rather than a historical work: Acta Sanctorum: Pien, Jean; Stiltingh, Jean; Van De Velde, Jean; Limpens, Jean (1746). Acta Sanctorum Septembris: Quo dies primus, secundus [et] tertius continentur (in Latin). Antwerp: Apud Bernardum Albertum Vander Plassche. pp. 110 column 2.
- Bishop Cresconius was a legate of Pope Anastasius II to the Emperor Anastasius I Dicorus in Constantinople in 497. He was present at the first Roman synod of Pope Symmachus on 1 March 499; at the third Roman synod of 23 October 501; and at the fourth Roman synod of 6 November 502. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus VIII (Florence: A. Zatta 1762), pp. 234, 252, 268. Ughelli, p. 1350. Leonii, Cronica, pp. 15-17. Lanzoni, p. 427.
- Candidus was from Tivoli (Tibur, not Tuder). Lanzoni, p. 427.
- Fortunatus was Bishop of Catania, and legate of Pope Hormisdas in Constantinople in 515. Lanzoni, p. 427.
- Callistus was actually Pope Callistus, but identified with Todi due to a connection of feast days. Lanzoni, p. 426, 427.
- Fortunatus is not the same person as Bishop Fortunatus of Poitiers; cf. Ughelli, p. 1351. Lanzoni, p. 427. Cf. Ughelli, p. 1350.
- Floridus was not bishop of Todi (Tudertinus), but of Città di Castello (Tifernatus). Ughelli, p. 1351 note 1. Lanzoni, p. 427.
- The diploma on which his existence is based is a forgery. Ughelli, p. 1351 note 2. Lanzoni, p. 427.
- Bishop Laurentius attended the Lateran Council of 649. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus X (Florence: A. Zatta 1764), p. 867.
- Bishop Bonifatius subscribed the letter of Pope Agatho to the Third Council of Constantinople in 680. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XI (Venice: A. Zatta 1774), p. 314.
- A bishop of Todi was present at the Roman synod of Pope Zacharias in 743. His name is not given in the subscription list, only his diocese and the letter "N", which may stand for "Nomen" (name unknown), or, as has been suggested, Nicholas. There is no other evidence. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XII (Venice: A. Zatta 1774), p. 384d. Leonii, Cronica, pp. 35-36.
- Bishop Theophylact was sent by Pope Adrian to England: Arthur West Haddan; William Stubbs (1871). Councils and Ecclesiastical Documents Relating to Great Britain and Ireland. Oxford: Clarendon Press. pp. 443–462. Patrick Wormald (1999). Legal Culture in the Early Medieval West. London: A&C Black. pp. 205–206. ISBN 978-1-85285-175-0.; and to the Council of Frankfurt (794).
- Bishop Joannes was present at the Roman synod of 1015 of Pope Benedict VIII. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XIX (Venice: A. Zatta 1774), p. 964. Ughelli, p. 1351. Leonii, Cronica, pp. 41-42. Schwartz, p. 294.
- Gregorius signed a bull of Pope Benedict IX as bishop-designate. Ughelli, p. 1351. Leonii, Cronica, p, 42.Schwartz, p. 294.
- Bishop Arduinus was present at the Roman synod of Pope Nicholas II on 13 April 1059. J.D. Mansi (ed.), Tomus XIX, p. 912. Cappelletti, p. 221. Leonii, Cronica, p. 42-43. Schwartz, p. 294.
- Rodulfus (Gorodulfus, Gotifredus) had been a Canon of the cathedral of Florence, the bishopric from which had come Pope Alexander II. Ughelli, p. 1352. Cappelletti, p. 221. Leonii, Cronica, p. 43. Schwartz, pp. 294-295.
- Schwartz, p. 295.
- Oddo died on 26 June 1115. Cappelletti, p. 222. Leonii, Cronica, p. 44. Schwartz, p. 295.
- Laurentius died on 5 January 1118. Cappelletti, pp. 222-223. Leonii, Cronica, pp. 43-45.bSchwartz, p. 295.
- Otto was consecrated by Pope Paschal II, and was sent to France in 1130 by Pope Anacletus II as one of his legates. Cappelletti, p. 223. Leonii, Cronica, pp. 45-46. Schwartz, p. 295.
- Gratianus was elected by the Chapter and clergy of Todi in October 1144, and approved by Pope Lucius II. He was present at the Third Lateran Council in March 1179. He died on 14 August 1279. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XXII (Venice: A. Zatta 1778), p. 459. Cappelletti, p. 223. Leonii, Cronica, p. 46.
- Rusticus was born at Foligno, and was a Canon of Todi, rising to be Prior of the cathedral Chapter. Leonii, Cronica, pp. 47-50. Eubel, Hierarchia catholica I, p. 501.
- Eubel, Hierarchia catholica I, p. 501.
- Jacobus (Giacomo degli Atti) was transferred to the diocese of Orvieto, by Pope Innocent IV. His successor at Todi was appointed on 28 May 1252. Eubel I, pp. 501.
- Pietro Gaetani had been bishop-elect of Sora. He was appointed Bishop of Todi on 28 May 1252 by Pope Innocent IV. He was transferred to the diocese of Anagni in 1276 by Pope John XXI. Eubel, pp. 86, 501.
- A native of the diocese of Todi and a member of the leading feudal family of Acquasparta, Bentivenga was confirmed as bishop of Todi on 18 December 1276 by Pope John XXI. He was named a cardinal by Pope Nicholas III on 12 March 1278, and appointed suburbicarian Bishop of Albano (He first subscribes as Bishop of Albano on 3 February 1279). He died on 25 March 1289. Leonii, Cronica, pp. 63-64. Eubel I, pp. 9 no. 3; 501.
- Angelario was the brother of Bishop Bentivenga. He was elected bishop on 29 July 1278, and confirmed on 10 August 1278 by Nicholas III. He died in 1285. Leonii, Cronica, pp. 64-67.
- On the death of Bishop Angelario, the cathedral Chapter elected Magister Giffridus of Anagni, papal Auditor Causarum Contradictarum, but he declined. They then elected Archdeacon Nicolaus of Todi, and he was approved by Pope Martin IV on 13 April 1282. Felix Olivier-Martin (1901). Les registres de Martin IV (1281-1285) (in Latin). Paris: A. Fontemoing. pp. 50–51. Cappelletti, p. 230.
- Nicolaus Armati had been Canon of Rouen. He was appointed Bishop of Todi by papal authority by Pope Boniface VIII on 24 August 1296. He died in 1326. Georges Digard, Les registres de Boniface VIII Volume I (Paris: Ernest Thorin 1884), p. 364, no. 1047. Leonii, Cronica, pp. 71-76. Eubel I, p. 502.
- Rainuccio degli Atti was expelled from the city in 1328 by the partisans of antipope Nicolas V. Leonii, Cronica, pp. 76-85. Eubel I, p. 502.
- Stefano had been Bishop of Brescia (1371–1373); he was transferred to the diocese of Todi by Pope Gregory XI on 30 March 1373. In the conclave of April 1378 he was the assistant of the Archbishop of Marseille, Guillaume de la Voulte, one of the custodians of the conclave. Pelosii was named a cardinal by Urban VI on 17 December 1384. He was Vicar in spiritualibus in Rome under Urban VI; S. R. E. Chamberlain (Camerlengo); and Archpriest of S. Maria Maggiore (Basilica Liberiana). According to his tomb inscription in S. Maria Maggiore, he died on 29 April 1398. V. Forcella, Inscrizione delle chiese e d'altri edificii di Roma Vol. XI (Roma: Cecchini 1877), p. 19, no. 27. Leonii, Cronica, pp. 90-94. Eubel, I, pp. 25, no. 41 (who gives a date of death of 24 April 1396); 502.
- Bartolomeo was appointed Bishop of Todi by Pope Eugene IV on 12 December 1435. Cappelletti (p. 235) says that he and his two nephews were imprisoned during factional strife with Ghibellines; Leonii (Cronica, p. 110) points out that the nephews were imprisoned as bandits, and that the context was actually the struggle between the supporters of the antipope Felix V and those of Eugenius IV. Aglioni (Alaleone) died on 4 January 1472. Eubel, Hierarchia catholica II, p. 258.
- Eruli had been Bishop of Narni. He was appointed Bishop of Todi by Pope Sixtus IV on 8 January 1472. He was transferred to the diocese of Spoleto on 8 December 1474. Leonii, Cronica, p. 127. Eubel II, pp. 241, 258.
- Francesco Mascardi retired on 19 July 1499 in favor of his nephew Basilio. He died in 1500. Leonii, Cronica, pp. 128-133. Eubel II, p. 258.
- Basilio, the nephew of Bishop Francesco Mascardi, was consecrated a bishop in Rome on 14 November 1501. He died in 1517 (or in 1515, according to Leonii, Cronica, p. 136. Eubel II, p. 258 note 6.
- Aldericus was appointed Bishop of Todi on 13 August 1517 by Pope Leo X. He was named titular archbishop of Caesarea (Palestine) on 1 June 1523 by Pope Adrian VI. Eubel, Hierarchia catholica III, pp. 144, 321.
- Cesi held the administratorship for only the first twelve days of June 1523. Leonii, Cronaca, pp. 141-144. Eubel, Hierarchia catholica III, p. 321.
- Federico Cesi (born 1500) was the younger brother of Cardinal Cesi. Though he was named Bishop of Todi on 12 June 1523, he was only twenty-five years old, and unable to receive episcopal consecration. He was not consecrated until 22 September 1538. Cardinal Paolo Emilio Cesi continued to administer the diocese on his behalf until 1534. Federico Cesi was named a cardinal on 19 December 1544. On 11 Mar 1545 he was appointed Administrator of Cervia. In 1557 he became suburbicarian Bishop of Palestrina, then of Tusculum (Frascati), then of Porto. He died on 28 January 1565. Leonii, Cronaca, pp. 144-146. Eubel III, pp. 29 no. 56; 321.
- Giovanni Cesi was born in Rome, the son of Prince Pier Donato Cesi, and first-cousin of Cardinal Paolo Emilio Cesi. His younger brother Venanzio was married to Filippa, daughter of Nicodemo Uffreduzzo, Patrician of Todi. Giovanni had been Abbreviatore del Parco Maggiore and Bishop of Cervia (1534–1545). He was appointed Bishop of Todi by Pope Paul III on 11 March 1545. Cesi retired on 15 Feb 1566, resigning in favor of his nephew Angelo. He took up residence at his villa at Santerenziano, where he died on 10 March 1569. Leonii, Cronaca, pp. 146-150. Eubel, III, pp. 163, 321.
- Cesi held the degree of Doctor in utroque iure, and obtained appointment as a Consistorial Advocate (lawyer in the Roman Curia). He was appointed Bishop of Todi on 15 February 1566. He died on 30 November 1606, after a reign of forty-six years. Leonii Cronaca, pp. 150-170. Eubel, III, p. 321 with note 8.
- Lante: Gauchat, Hierarchia catholica IV, p. 349.
- Cinci: Gauchat, p. 349, with note 3.
- Carpegna: Gauchat, p. 349.
- Altieri was the brother of Pope Clement X, and a famous canonist. Gauchat, p. 349.
- Lomellini: Gauchat, p. 349.
- Bichi was named Bishop of Todi On 12 June 1673. Bichi was appointed Bishop of Sovana on 12 June 1673. He died on 9 September 1684. Gauchat, p. 349. Ritzler-Sefrin V, p. 364 with note 3.
- Pianetti: Ritzler-Sefrin, Hierarchia catholica V, p. 394 with note 2.
- Gualtieri: Ritzler-Sefrin, V, p. 394 with note 3.
- Ludovico Gualtieri: Ritzler-Sefrin, V, p. 394 with note 4.
- Formagliari: Ritzler-Sefrin, Hierarchia catholica VI, p. 421 with note 2.
- Pasini: Ritzler-Sefrin, VI, p. 421 with note 3.
- Francesco Fabi Montani (1847). Elogio storico di monsignor Tommaso Struzzieri Vescovo di Todi scritto da Francesco Fabi-Montani (in Italian). Modena: gli Eredi Soliani. Ritzler-Sefrin, Hierarchia catholica VI, p. 421 with note 4.
- Lotrecchi: Ritzler-Sefrin, Hierarchia catholica VI, p. 421 with note 5.
- Cioja was born in Rome, of the family of the Marchesi Cioja of Milan. He was secretary of the SC of the Consulta, Auditor of the Apostolic Camera (Treasury), and substitute for the Vice-Governor of Rome. Under the French occupation in 1798, when Pope Pius VI was expelled from Rome and then imprisoned in France, he lost his offices. The new pope, Pius VII, named him Bishop of Todi on 22 December 1800. He suffered a stroke, and died on 17 June 1805. Leonii, Cronaca, pp. 202-203. Ritzler-Sefrin, Hierarchia catholica VII, p. 380.
- A native of Terni, Gazzoli began his career at the age of 26 as an official in the SC of Good Government, and became secretary of the Roman Rota. He was appointed governor of Fabbriano, then Rieti, then Spoleto. He was Apostolic Delegate to the provinces of Umbria and Sabina, and then to the province of Ancona. In 1795 he was named Bishop of Citta della Pieve, and in 1800 he was appointed Bishop of Amelia. He was named Bishop of Todi on 23 September 1805. He was an honorary member of the Accademia di San Luca. He died on 26 January 1848, at the age of eighty-seven. Luigi Bertuccioli (1822). Memorie intorno la vita del conte Giulio Perticari (in Italian). Pesaro: presso Giambattista Rosa. pp. 97, n. 108. Notizie per l'anno 1835 (in Italian). Rome: Cracas. 1835. p. 152. Leonii, Cronaca, pp. 203-209. Ritzler-Sefrin, VII, p. 380.
- A native of Foligno, Rossi had been Prior of the cathedral Chapter of Foligno. He was appointed Bishop of Todi by Pope Pius IX on 14 April 1848, with the expectation that he would keep Todi loyal to the papacy in the face of the Roman Republic. He made his formal entry into the diocese on 20 August 1848. He died on 29 November 1854. Leonii, Cronaca, pp. 209-210. Ritzler-Sefrin, VIII, p. 571.
- Leonii, Cronaca, p. 211.
- Leonii, Cronaca, pp. 211-212.
- On 29 Nov 1895 Boschi was appointed Bishop of Senigallia.
- On 6 Aug 1906 Ridolfi was appointed titular Archbishop of Apamea in Syria.
- On 30 Sep 1986 Grandoni was appointed Bishop of Orvieto-Todi.
- Gams, Pius Bonifatius (1873). Series episcoporum Ecclesiae catholicae: quotquot innotuerunt a beato Petro apostolo. Ratisbon: Typis et Sumptibus Georgii Josephi Manz. pp. 734-735. (Use with caution; obsolete)
- Eubel, Conradus (ed.) (1913). Hierarchia catholica. Tomus 1 (second ed.). Münster: Libreria Regensbergiana.CS1 maint: extra text: authors list (link) p. . (in Latin)
- Eubel, Conradus (ed.) (1914). Hierarchia catholica. Tomus 2 (second ed.). Münster: Libreria Regensbergiana.CS1 maint: extra text: authors list (link) p. 152.
- Eubel, Conradus (ed.); Gulik, Guilelmus (1923). Hierarchia catholica, Tomus 3 (second ed.). Münster: Libreria Regensbergiana.CS1 maint: extra text: authors list (link) pp. .
- Gauchat, Patritius (Patrice) (1935). Hierarchia catholica. Vol. IV (1592-1667). Münster: Libraria Regensbergiana. Retrieved 2016-07-06. p. .
- Ritzler, Remigius; Sefrin, Pirminus (1952). Hierarchia catholica medii et recentis aevi. Vol. V (1667-1730). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06. p. .
- Ritzler, Remigius; Sefrin, Pirminus (1958). Hierarchia catholica medii et recentis aevi. Vol. VI (1730-1799). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06. p. .
- Cappelletti, Giuseppe (1846). Le chiese d'Italia: dalla loro origine sino ai nostri giorni (in Italian). Volume quinto (5). Venice: G. Antonelli. pp. 213–244.
- Ceci, Getulio (1897). Todi nel Medio Evo (in Italian). Todi: A. Trombetti.
- D'Ettorre, Francesca (1993). La diocesi di Todi (in Italian). Spoleto: Fondazione CISAM.
- Lanzoni, Francesco (1927). Le diocesi d'Italia dalle origini al principio del secolo VII (an. 604). Faenza: F. Lega, pp. 419-427. (in Italian)
- Leonii, Lorenzo (1856). Memorie storiche di Todi (in Italian). Dispensa I. Todi: A. Natali. Dispensa II. Dispensa III. Dispensa IV.
- Leonii, Lorenzo (1889). Cronica dei vescovi di Todi (in Italian). Todi: F. Franchi.
- Schwartz, Gerhard (1907). Die Besetzung der Bistümer Reichsitaliens unter den sächsischen und salischen Kaisern: mit den Listen der Bischöfe, 951-1122. Leipzig: B.G. Teubner. pp. 294-295. (in German)
- Ughelli, Ferdinando; Coleti, Nicolò (1717). Italia sacra: sive De episcopis Italiae et insularum adjacentium (in Latin). Tomus primus. Venice: apud Sebastianum Coleti. pp. 1463–1480.
- Benigni, Umberto (1912). "Todi." The Catholic Encyclopedia. Vol. 14. New York: Robert Appleton Company, 1912. Retrieved: 2 May 2019.