1304

January–December

• February 9 - Wars of Scottish Independence: John "Red" Comyn, Lord of Badenoch, negotiates a peace with the Kingdom of England.
• July 20 - Fall of Stirling Castle: Edward I of England takes the last rebel stronghold in the Wars of Scottish Independence.
• August 17 - The Battle of Mons-en-Pévèle is fought to a draw, between the French army and the Flemish militias.
• October 24 - Sasa Bey of the Beylik of Menteşe conquers Ephesus from the Eastern Roman Empire, massacring and deporting its native population.

  Date unknown

• James II of Aragon reconquers Villena, Spain.
• Holland and Zeeland are occupied by John II, Duke of Brabant and Guy of Dampierre. John II, Count of Hainaut recovers the counties.
• Ala-ud-din Khalji, Sultan of Delhi, conquers Gujarat.
• A peace treaty, signed between the khanates of the Mongol Empire, ends the Mongol civil war.
• The Genoese Benedetto I Zaccaria takes control of Chios Island from the Byzantine Empire, establishing an autonomous lordship there.
• The construction of Ypres Cloth Hall is completed.

  Births

• February 25 - Ibn Battuta, Moroccan jurist and explorer
• July 20 - Petrarch, Italian poet
• William de Clinton, 1st Earl of Huntingdon
• Marie of Luxembourg, Queen of France
• Louis I of Flanders
• Jayaatu Khan, emperor of the Yuan Dynasty
• Günther von Schwarzburg, German king

  Deaths

• March 7 or 8 - Bartolomeo I della Scala, lord of Verona
• May 11 - Mahmud Ghazan, Mongol ruler
• May 23 - Jehan de Lescurel, French poet and composer
• July 7 - Pope Benedict XI
• July 17 - Edmund Mortimer, 2nd Baron Wigmore
• August 17 - Emperor Go-Fukakusa of Japan
• August 22 - John II, Count of Hainaut
• September - John de Warenne, 6th Earl of Surrey, English soldier
• December 23 - Matilda of Habsburg, duchess regent of Bavaria