1251 deaths

Mongol Khan

Mongol Khagan

Italian cardinal (died 1251)

Count of Flanders (1224-1251)

saint of third order of Francis (Franciscan tertiary)

Tibetan Lama (1182–1251)

French noble

Roman Catholic archbishop (1180-1251)

Moorish poet

[利子] daughter of Morisada-shinnō; entitled Empress consort

Countess of Bigorre

Bulgarian duchess

Wife of Robert de Brus, 4th Lord of Annandale

Kyaswa (, ; 1198–1251) was the king of the Pagan dynasty of Burma (Myanmar) from 1235 to 1251. Kyaswa succeeded his father Htilominlo and was even more devout. Kyaswa's reign like his father's was largely peaceful but the depletion of the royal treasury due to large tax-free religious landholdings became more pronounced. The royal treasury was so depleted that Kyaswa had trouble completing a temple. The empire founded by Anawrahta over two centuries earlier was still peaceful but already on its last legs, unprepared for the internal disorders and external forces that were to come.

founder of Frati della Misericordia

Scottish noble

Bhutanese Lama

Welsh noble

Italian politician (1185-1251)

Peerage person ID=8393

Egyptian mathematician (1178-1251)

Swedish politician