Background
He was the son of Reginald I, Count of Bar and lord of Mousson, and Giselle of Vaudémontana In 1135, he attended the Council of Hugh of Metz with his father and brother.
He was the son of Reginald I, Count of Bar and lord of Mousson, and Giselle of Vaudémontana In 1135, he attended the Council of Hugh of Metz with his father and brother.
His father died during his return. He reestablished wars against his traditional enemies, the Duke of Lorraine and the bishop of Metz. He was attacked in 1152, escaped to the Abbey of Saint-Mihiel and was excommunicated and had to make amends.