The 1250s

Explore 28 historical events from 1250–1259.

1251 775 years ago

William III of Dampierre, Count of Flanders

William III was the lord of Dampierre from 1231 and count of Flanders from 1247 until his death. He was the son of William II of Dampierre and Margaret II of Flanders.

William III of Dampierre, Count of Flanders

1250

Peter I, duke of Brittany

Peter I, also known as Peter Mauclerc and Peter of Dreux, reigned as Duke of Brittany alongside his wife Alix from 1213 to 1221, and was regent of the duchy for his minor son John …

Peter I, duke of Brittany

0 christian feast day theresa of portugal 06 17
1250

Theresa of Portugal, Queen of León

Theresa of Portugal was Queen of Léon as the first wife of her first cousin King Alfonso IX of León. When her marriage was annulled because of consanguinity, she retired to a conve…

Theresa of Portugal, Queen of León