William Sánchez of Gascony dating history

Details

William II Sánchez (also William Sancho, Basque: Gilen Antso, French: Guillaume Sanche, Gascon: Guilhem Sans, Latin: Willelmus Sancio, Spanish: Guillén or Guillermo Sancho), Duke of Gascony from circa 961 at least until 996, was the younger illegitimate son of duke Sancho IV and successor, around 961, of his childless elder brother, Duke Sancho V. He united the County of Bordeaux with the Gascony. Documents of his reign state that his grandfather came from Iberia, lending credence to "phantasmagorical" genealogies placing the origins of García II Sánchez across the Pyrenees. He died in 996 or 997 and was succeeded by his son, Bernard William.