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|Ab urbe condita||2050|
|Balinese saka calendar||1218–1219|
|English Regnal year||25 Edw. 1 – 26 Edw. 1|
|Chinese calendar||丙申年 (Fire Monkey)|
3993 or 3933
— to —
丁酉年 (Fire Rooster)
3994 or 3934
|- Vikram Samvat||1353–1354|
|- Shaka Samvat||1218–1219|
|- Kali Yuga||4397–4398|
|Japanese calendar||Einin 5|
|Minguo calendar||615 before ROC|
|Thai solar calendar||1839–1840|
1423 or 1042 or 270
— to —
1424 or 1043 or 271
|Wikimedia Commons has media related to 1297.|
- January 8 – The forces of Francesco Grimaldi storm the castle of Monaco (the House of Grimaldi will remain rulers of the principality into the 21st Century).
- May 3 – Near Rome, Stefano Colonna captures the treasure sent by the Caetani family to the Pope.
- August 28 – Edward I of England unsuccessfully invades Flanders.
- September 11 – Battle of Stirling Bridge: The Scottish armies of Andrew Moray and William Wallace defeat the English.
- September 12 – King Denis of Portugal and King Ferdinand IV of Castile sign the Treaty of Alcanizes. The geographic limits of Portugal are fixed permanently (with the exception of São Félix de Galegos, lost in 1640 and Olivenza, lost in 1801).
- King Louis IX of France is canonized.
- As part of the Treaty of Anagni, the king of Aragon is recognized as ruler of the Kingdom of Sardinia and Corsica by the Pope, but both islands remain in practice under Pisan and Genoese control.
- A Portuguese Water Dog is first described in a monk’s report of a drowning sailor, who had been pulled from the sea by a dog.
- Sanremo is sold to the Doria and De Mari Families.
- March 25
- August 14 – Emperor Hanazono of Japan (d. 1348)
- date unknown
- January 23 – Florent of Hainaut, Prince of Achaea (b. c. 1255)
- February 22 – Saint Margaret of Cortona (b. 1247)
- March – Patriarch John XI of Constantinople (b. c. 1225)
- May 18 – Nicholas Longespee, Bishop of Salisbury
- August 13 – Nawrūz, Mongol emir
- August 14 – Frederick III, Burgrave of Nuremberg (b. c. 1220)
- August 16 – John II, Emperor of Trebizond (b. c. 1262)
- August 19 – Saint Louis of Toulouse, French Catholic bishop (b. 1274)
- August 20 – William Fraser, bishop and Guardian of Scotland
- September – Andrew Moray, Scottish resistance leader
- September 11 – Hugh de Cressingham, English Treasurer
- December 28 – Hugh Aycelin, French cardinal (b. 1230)
- date unknown
- probable – Nikephoros I Komnenos Doukas, ruler of Epirus
- Maire Vigueur, Jean-Claude (2010). L'autre Rome. Une histoire des Romains a l'époque communale (XIIe-XIVe siècle). Paris: Tallandier. p. 241. ISBN 978-2-84734-719-7. Archived from the original on March 3, 2012. Retrieved February 29, 2012.
- "History of the Portuguese Water Dog", Kathryn Braund and Deyanne Farrell Miller, The Complete Portuguese Water Dog, 1986, DeLeao.