| Peter of Coimbra Peter V of Aragon (disputed) | |
|---|---|
| Constable of Portugal; Count of Barcelona | |
.jpg) Portrait in the Chapel of Santa Àgata, 1464-1465 | |
| Died | 30 June 1466 (aged 36–37) Granollers |
| Burial | |
| 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.