Peter, Constable of Portugal

Peter of Coimbra Peter V of Aragon (disputed)
Constable of Portugal; Count of Barcelona
Portrait in the Chapel of Santa Àgata, 1464-1465
Died	30 June 1466 (aged 36–37) Granollers
Burial	Santa Maria del Mar Church, Barcelona
House	Aviz
Father	Peter, Duke of Coimbra
Mother	Isabella of Urgell

Peter of Coimbra (also known as Peter the Constable) (Portuguese: Pedro, pronounced [ˈpeðɾu]; c. 1429 – Granollers, 30 June 1466), sometimes known as Peter V of Aragon, was the son of Infante Peter, Duke of Coimbra, who became the fifth Constable of Portugal and third Grand Master of the Order of Saint Benedict of Aviz. The Consell de Cent later granted Peter the Crown of Aragon, which he claimed from 1463 to 1466 in opposition to John II. His status as king of Aragon, however, along with that of John II's other challengers, is disputed.