Tags: Noble.
Henry Borwin III Lord of Rostock (c. 1220 – 1 August 1278) was a member of the House of Mecklenburg. He ruled the Lordship of Rostock jointly with his brothers from 1226 to 1234 then ruled alone until his death.He was the second youngest son of Henry II Borwin who became Lord of Rostock in 1225. Since Henry Borwin III was still a minor when his father died in 1226 his brother Nicholas I acted as regent until 1234.