Infanta Urraca of Portugal (Portuguese pronunciation: (Coimbra, 1151 – Valladolid, 16 October 1188) was a Portuguese infanta (princess), daughter of Afonso I, 1st King of Portugal and his wife Maud of Savoy. She married Ferdinand II of León (c. 1165) with whom she had Alfonso IX of León. This marriage didn't prevent her father Afonso I from declaring war on his son-in-law. This short war culminated in disaster when Afonso was captured in Badajoz. Perhaps due to his marriage to Urraca, Ferdinand was generous to Afonso, and let him leave. However, the marriage of Ferdinand II and Urraca was annulled in 1175 by the Pope, using the fact that Urraca was his distant cousin as justification.