Frederick I, Duke of Brunswick-Osterode

For other people with the same name, see Frederick of Brunswick-Lüneburg.

Frederick I, Duke of Brunswick-Osterode (c. 1350-1421)^{[citation needed]} was a son of Duke Ernest I and his wife, Adelaide of Everstein-Polle.^[1]

Frederick I, Duke of Brunswick-Osterode
Born	c. 1350
Died	1421
Spouse	Adelaide of Anhalt-Zerbst
Issue	Otto II, Duke of Brunswick-Osterode
House	House of Guelph
Father	Ernest I, Duke of Brunswick-Grubenhagen
Mother	Adelaide of Everstein-Polle

In 1361, he succeeded his father as Count of Osterode.

He married Adelaide (d. before 1421), a daughter of Bernhard V, Prince of Anhalt-Bernburg, and was the father of Otto II (1396-1452), who succeeded him.^{[citation needed]} He may have also married Elizabeth, heiress of Homburg.

Frederick I, Duke of Brunswick-Osterode House of Guelph Born: c. 1350 Died: 1421
Preceded by Ernest I	Duke of Brunswick-Lüneburg Count of Osterode 1361–1421	Succeeded by Otto II