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|Elector of Saxony|
|Reign||6 January 1423 – 4 January 1428|
|Margrave of Meissen|
|Reign||9 February 1407 – 4 January 1428|
|Born||11 April 1370|
Dresden, Margravate of Meissen, Holy Roman Empire
|Died||4 January 1428 (aged 57)|
Altenburg, Electorate of Saxony, Holy Roman Empire
Princes Chapel in Meissen Cathedral
|Spouse||Catherine of Brunswick-Lüneburg|
|Frederick II, Elector of Saxony|
Anna, Landgravine of Hesse
William III, Duke of Luxembourg
|House||House of Wettin|
|Father||Frederick III, Landgrave of Thuringia|
|Mother||Catherine of Henneberg|
Frederick I, the Belligerent or the Warlike (German: Friedrich der Streitbare; 11 April 1370 – 4 January 1428), a member of the House of Wettin, ruled as Margrave of Meissen from 1407 and Elector of Saxony (as Frederick I) from 1423 until his death.
He was the eldest son of Frederick III, Landgrave of Thuringia, and Catherine of Henneberg. After the death of his uncle William I, Margrave of Meissen in 1407, he was made governor of the Margraviate of Meissen together with his brother William II as well as with his cousin Frederick IV (son of Balthasar), until their possessions were divided in 1410 and 1415.
In the German town war of 1388 he assisted Frederick V of Hohenzollern, burgrave of Nuremberg, and in 1391 did the same for the Teutonic Order against Wladislaus II of Poland. He supported Rupert III, Elector Palatine of the Rhine, in his struggle with King Wenceslaus for the German throne, probably because Wenceslaus refused to fulfill a promise to give him his sister Anna in marriage.
The danger to Germany from the Hussites induced Frederick to ally himself with Emperor Sigismund; and he took a leading part in the war against them, during the earlier years of which he met with considerable success. For his victory at the Battle of Brüx in 1421, Frederick was granted the ranks of Duke and Elector. In the prosecution of this enterprise Frederick spent large sums of money, for which he received various places in Bohemia and elsewhere in pledge from Sigismund, who further rewarded him on 6 January 1423 with the vacant electoral Duchy of Saxony-Wittenberg; and Fredericks formal investiture followed at Ofen on the 1 August 1425. Thus ascended Frederick IV, who called himself Frederick I now as duke and elector. Thus spurred to renewed efforts against the Hussites, the elector was endeavouring to rouse the German princes to aid him in prosecuting this war when the Saxon army was almost annihilated at Aussig on the 16 August 1426.
Frederick died in 1428 at Altenburg. He was buried as the first Wettin in the centre of what is now known as the Princes Chapel in Meissen Cathedral. The cathedral is now accessible to the public for a small fee and the tomb is readily seen.
- Catherine, died young;
- Frederick II, Elector of Saxony (1412–1464);
- Sigismund, Bishop of Würzburg, (3 March 1416 – 24 December 1471);
- Anna, (5 June 1420 – 17 September 1462), married to Louis I, Landgrave of Hesse;
- Catherine, (1421 – 23 August 1476, Berlin), married to Frederick II, Elector of Brandenburg;
- Henry, (21 May 1422 – 22 July 1435);
- William III, Duke of Luxemburg (1425–1482), Landgrave of Thuringia;
- married firstly, in 1446, Archduchess Anne of Austria (1432–1462)
- married secondly, in 1463, Catherine of Brandenstein († 1492)
- ‹See Tfd› This article incorporates text from a publication now in the public domain: ‹See Tfd›Chisholm, Hugh, ed. (1911). "Frederick I., Elector of Saxony". Encyclopædia Britannica. 11 (11th ed.). Cambridge University Press. p. 59.
Frederick I, Elector of SaxonyBorn: 11 April 1370 Died: 4 January 1428
| Margrave of Meissen
with William II & Frederick the Peaceful
| Elector of Saxony|