Otto the Mild

Otto the Mild (24 June 1292 – 30 August 1344), Duke of Brunswick-Lüneburg, ruled over the Brunswick part of the duchy.

Otto was the eldest son of Albert II, Duke of Brunswick-Lüneburg.

In 1323, he acquired the Altmark from Brandenburg as an inheritance of his wife's; but he sold it in 1343, when he failed to establish control there.

Firstly, Otto married Jutta (died 1317), daughter of Henry I, Landgrave of Hesse.

Secondly, he married Agnes (1297–1334), daughter of Herman, Margrave of Brandenburg-Salzwedel, in 1319.

Otto the Mild and his wife Agnes of Brandenburg.