The Battle of Graus and the death of Ramiro I Historical milestone · Graus, La Ribagorza, Huesca Image of Graus, not of the place itself. The first king of Aragon died in 1063 before the town's walls during a failed siege, against the troops of the taifa of Zaragoza supported by a Castilian contingent; his remains were taken to San Juan de la Peña. 8 de mayo de 1063 Photo: Cherubino (CC BY-SA 3.0) What to see and do in Graus