Tags: Noble.
Frederick I Duke of Brunswick-Osterode (c. 1350-1421) was a son of Duke Ernest I and his wife Adelaide of Everstein-Polle. In 1361 he succeeded his father as Count of Osterode.He married Adelaide (d. before 1421) a daughter of John of Anhalt-Zerbst and was the father of Otto II (1396-1452) who succeeded him.This article incorporates information from the equivalent article on the Nederlands Wikipedia.