Gaston IV was viscount of Béarn from 1090 to 1131. He was called le Croisé––the Crusader––because of his participation in the First Crusade as part of the army of Raymond of Saint-Gilles. Wikipedia
Born: 1074
Died: 1130 (age 56 years), Valencia, Spain
Great grandchildren: Gaston V, Viscount of Béarn and Mary, Viscount of Béarn
Great-grandparent: Centule IV, Viscount of Béarn
Grandchild: Peter II, Viscount of Béarn
Grandparent: Gaston III, Viscount of Béarn
Children: Guiscarda, Viscountess of Béarn and Centule VI, Viscount of Béarn