Bertrand I Of Provence

Bertrand I's father was Guillaume II Of Provence and his mother is Gerberge De Bourgogne.  His paternal grandparents were Guillaume I Of Provence and Adelaide D' Anjou; his maternal grandfather was Otto Guillaume De Bourgogne and his maternal grandmother is Ermentrude De Roucy. He had a brother named Geoffrey I.  He died in 1053.¹