The Infante Henrique, Duke of Viseu (Porto, March 4, 1394 – Sagres, November 13, 1460); pron. IPA: [ẽ'ʁik(ɨ)]), was an infante (prince) of the Portuguese House of Aviz an an important figure in the early days of the Portuguese Empire, being responsible for the beginning of the European worldwide explorations. He is known in English as Prince Henry the Navigator or the Seafarer (Portuguese: o Navegador).