Otto of Brunswick-Grubenhagen
Otto of Brunswick-Grubenhagen (born 1337) was the eldest son of Prince Ernest I of Grubenhagen and Adelaide of Everstein. He died young, and the principality later passed to his younger brother Albert I.
Otto of Brunswick-Grubenhagen (born 1337) was the eldest son of Prince Ernest I of Grubenhagen and Adelaide of Everstein. He died young, and the principality later passed to his younger brother Albert I.