Ferdinand reigned as jure uxoris Count of Flanders and Hainaut from his marriage to Countess Joan, celebrated in Paris in 1212, until his death. He was born in Coimbra, and he was an Infante of Portugal as the fourth son of King Sancho I of... Wikipedia
Born: March 24, 1188, Coimbra, Portugal
Died: July 27, 1233 (age 45 years), Noyon, France
Great-grandparents: Henry, Count of Portugal, Ramon Berenguer III, Count of Barcelona, Ramiro II of Aragon, and more
Parents: Sancho I of Portugal and Dulce of Aragon
Spouse: Joan, Countess of Flanders (m. 1212–1233)
Reign: 1212–1233