Peter, Duke of Coimbra (d. 1449)
Infante D. Pedro, Duke of Coimbra KG (Portuguese pronunciation: [ˈpedɾu]; English: Peter), (9 December 1392 – 20 May 1449) was a Portuguese infante (prince) of the House of Aviz, son of King John I of Portugal and his wife Philippa of Lancaster, daughter of John of Gaunt. In Portugal, he is better known as Infante D. Pedro das Sete Partidas [do Mundo], "of the Seven Parts [of the World]" because of his travels. Possibly the best-travelled prince of his time, he was regent between 1439 and 1448. He was also 1st Lord of Montemor-o-Velho, Aveiro, Tentúgal, Cernache, Pereira, Condeixa and Lousã.