Baldwin of Flanders usually refers to Baldwin I of Constantinople (1172–1205), Count of Flanders (as Baldwin IX) and the first Latin Emperor of Constantinople. It may also refer to: Baldwin I, Count of Flanders (died 879) Baldwin II, Count of Flanders ( 865–918) Baldwin III, Count of Flanders ( 940–962) Baldwin IV, Count of Flanders ( 980–1035) Baldwin V, Count of Flanders (1012–1067) Baldwin VI, Count of Flanders ( 1030–1070) Baldwin VII, Count of Flanders (1093–1119) Baldwin VIII, Count of Flanders (1150–1195), better known as Baldwin V, Count of Hainaut