William I of Geneva was Count of Geneva from 1178 to 1195. He was the son of Amadeus I, Count of Geneva and Matilda de Cuiseaux.
William married Agnes of Savoy. Wikipedia
Born: 1132, County of Geneva
Died: July 25, 1195 (age 63 years), Annecy, Annecy, France
Great grandchildren: Beatrice of Savoy, Dame of Faucigny, Amadeus II of Geneva, Amadeus V, Count of Savoy, and more
Grandparent: Ita
Partner: Agnes of Savoy and Beatrix
Parents: Amadeus I, Count of Geneva
Children: William II of Geneva, Margaret of Geneva, and Amédée de Genève