Peter I, Count of Alençon
Member of the Capetian dynasty
Peter I of Alençon was the son of Louis IX of France and Margaret of Provence.
He became Count of Alençon in 1269 and in 1284, Count of Blois and Chartres, and Seigneur de Guise in 1272 and 1284. He was also Count of Perche. Wikipedia
Born: June 29, 1251, Château Pèlerin
Died: April 6, 1283 (age 31 years), Salerno, Italy
Parents: Louis IX of France and Margaret of Provence
Great-grandparents: Philip II of France, Alfonso VIII of Castile, Eleanor of England, Queen of Castile, and more
Partner: Joan, Countess of Blois (1272–)
Grandparents: Louis VIII of France, Blanche of Castile, Beatrice of Savoy, and more
Cousins