This article does not cite any sources. (July 2017) (Learn how and when to remove this template message)
|1303 by topic|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Art and literature|
|1303 in poetry|
|Wikimedia Commons has media related to 1303.|
- February 24 – Battle of Roslin: The Scots defeat the English.
- April 4 – Battle of Arques: The Flemings defeat the French.
- April 20 – Pope Boniface VIII founds the University of Rome La Sapienza.
- May 29 – The Treaty of Paris restores Gascony to the English.
- August 8 – An earthquake destroys the Lighthouse of Alexandria in Egypt, one of the seven wonders of the world.
- September 7 - William of Nogaret imprisons Pope Boniface VIII on behalf of Philip IV of France.
- October 22 – Pope Benedict XI succeeds Pope Boniface VIII, as the 194th pope.
- Wars of Scottish Independence: Edward I of England resumes his campaign against William Wallace and others in Scotland, holding court in Dunfermline Abbey.
- Battle of Dimbos: The Ottoman Turks under Osman I defeat the Byzantines.
- The Khalji Dynasty under Alauddin Khalji conquers Chittorgarh in northern India, after taking the massive Chittor Fort.
- The Avoirdupois system of weights and measures is introduced to England and Wales.
- Siege of Amsterdam: Kennemers and Waterlanders lay siege against Amsterdam for a year.
- March 4 – Daniel of Russia, first prince of Moscow
- May 19 – Saint Ivo of Kermartin, French canon lawyer (b. 1253)
- September 7 – Gregory Bicskei, archbishop of Esztergom
- October 11 – Pope Boniface VIII
- October 27 – Beatrice of Castile, queen consort of King Afonso III of Portugal
- date unknown – Emperor Ivan Asen III of Bulgaria