(Viseu, Portugal, 1391 - Tomar, Portugal, 1438)
"Eduardo I de Portugal o Duarte en portugués, (Viseu, 31 de octubre de 1391 - Tomar, 9 de septiembre de 1438 fue el segundo rey de Portugal de la Dinastía de Avís e hijo del rey Juan I de Portugal y de Felipa de Lancaster (hija de Juan de Gante, duque de Lancaster, hijo a su vez de Eduardo III de Inglaterra). Su padre falleció el 14 de agosto de 1433 y al día siguiente Eduardo le sucedió en trono del reino de Portugal."
"Duarte (duˈaɾt(ɨ); 31 October 1391 - 9 September 1438), known in English as Edward and called the Philosopher (o Rei-Filósofo) or the Eloquent (o Eloquente), was King of Portugal and the Algarve and Lord of Ceuta from 1433 until his death. He was born in Viseu, the son of John I of Portugal and his wife, Queen Philippa of Portugal, a daughter of John of Gaunt. Edward was the oldest member of the "Illustrious Generation" of accomplished royal children who contributed to the development of Portuguese civilization during the 15th century. As a cousin of several English kings, he became a Knight of the Garter."