Gebhard I, Count of Wernigerode
Gebhard I, third son of Count Albert III of Wernigerode, is attested from 1217 as count in the Derlingau and Nordthüringgau, ruling the Wernigerode lands until 1269. In 1268 the county lost its imperial immediacy and became a fief of the margraves of Brandenburg, seeking protection against the dukes of Brunswick.
By his wife Luitgard he had his successor, Conrad II, and a daughter Hedwig, who became a prioress near Helmstedt. Gebhard died after 14 July 1270.