Reginar III, Count of Hainaut Count of Hainaut (920-973) (0920–0973) Parents Adelaide of Burgundy Reginar II, Count of Hainaut Children Reginar IV, Count of Mons Lambert I, Count of Louvain Siblings Rudolf, Count of Hesbaye Liechard (?) unknown daughter (?) Amalric, Count of Valenciennes Partners Adela of Hainaut