Henry II, Count of Honstein

Heinrich II (IV), Count of Honstein, was born around 1275, the son of Count Dietrich II and Sophie of Anhalt-Bernburg. Through his marriage before 1302 to Irmgard, heiress of Arnstadt, he inherited Arnstadt in 1302, became head of the house in 1305 and ruled its Klettenberg lands from 1309.

In 1327 he built Heringen Castle, and he founded the Klettberg line of the family. He is last documented in 1342 and died before 1344.