William García (also Guillaume Garcès or Guillermo Garcés) (died 960) was a Count of Fézensac. He was the second son of García II of Gascony and Amuna.[1]
When García II died in or around 926, he gave Gascony to his eldest son Sancho IV and created appanages for his younger sons: Fézensac for William and Astarac for Arnold. Fézensac included Auch, Vic, and the Armagnac.[2]
William himself divided his county amongst his heirs: