Tags: Noble.
William IV of Burgundy (also known as William III of Mâcon) (1088–1157) was count of Mâcon (1102–1157) count of Auxonne (1127–1157) count of Vienne (1148–1157) then regent of the county of Burgundy (1148–1157). He was the son of Stephen I Count of Burgundy and of Béatrice of Louvain.