Guillaume III , Comte de Provence

   Other names for Guillaume were The Pious and William.

  Research Notes:

My information and source can be found at Foundation for Medieval Genealogy

Guillaume married Gerberga de Mâcon, daughter of Othon-Guillaume , Comte de Mâcon & Nevers and Ermentrude de Roucy. (Gerberga de Mâcon was born about 986 in France ¹.)