Duke Otto II (or Otho) of Brunswick-Osterode (1396[citation needed]–c.1452)[1] was a son of Duke Frederick I of Brunswick-Osterode and his wife, Adelaide of Anhalt-Zerbst, or possibly Elizabeth, heiress of Homburg.[1] He succeeded his father as duke of Brunswick-Osterode in 1421 and ruled jointly with his first cousin once removed Albert II.[citation needed]
Otto was married to Schonetta (or Schonela) (d. 1436),[1] a daughter of Count John I of Nassau-Weilburg.[citation needed] This marriage was childless.[1]
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