Henry IV, Count of Waldeck

Henry IV (c. 1282–1348) ruled Waldeck from 1305 to 1344. Son of Count Otto I and Sophie of Hesse, he served the Archbishops of Mainz as Amtmann in northern Hesse and the Eichsfeld.

From 1306 his building of Wetterburg Castle caused a long feud with Archbishop Henry II of Cologne until both sides accepted joint ownership in 1325. In 1315 Emperor Louis IV made him protector of Dortmund. He retired in 1344 after arranging an undivided succession and died in 1348.