an alliance with his royal neighbour to the south, the Crown of Aragon. However, he had to war with his neighbours to the east. In 1082, he launched an attack on Dax, but was severely defeated. In 1079, Centule participated in the attempt to take Zaragoza that was repelled by El Cid Campeador, then in the service of the Moors. In 1090, he travelled anew into Aragon at the head of Bearnese troops to assist in an assault on Huesca under the guidance of Sancho, but he was assassinated in the Tena Valley. Gaston succeeded him and continued in his policies of aggrandisement and friendly church-state relations. References 1090 deaths Viscounts of Béarn Year of birth unknown