Baldwin V of Flanders was a medieval noble who ruled as Count of Flanders from 1036 until his death in 1067. He was the son of Baldwin IV and Otto of Flanders, and he inherited a prosperous and strategically important region in present-day Belgium and northern France. His reign was marked by efforts to strengthen the economy and maintain peace among local factions. In 1066, Baldwin V became involved in the politics of Normandy when he supported William the Conqueror during the latter's invasion of England. This alliance helped solidify Baldwin's influence in the region, and he played a significant role in the feudal system that characterized medieval Europe.