Maria of Aragon, Lady of Cameros

Maria of Aragon (1299–1316, Sijena) was a daughter of James II of Aragon and his second wife Blanche of Anjou.

She married the Infante Peter of Castile (1290–1319), son of Sancho IV of Castile. Their daughter, Blanche of Castile (1315–1375), married and later divorced Peter I of Portugal. Maria died at Sijena in 1316.