Peter of Aragon was born on an unknown date to Peter I of Aragon and Navarre (c1068-1104) and Agnes of Aquitaine (?-1097) and died 1103 of unspecified causes. He married Maria Díaz de Vivar (1080-1105) . Notable ancestors include Hugh Capet (c940-996), Charlemagne (747-814). Ancestors are from France, Germany, Belgium.
Peter died young and childless.