Albert I, Duke of Brunswick-Lüneburg Prince of Brunswick-Wolfenbüttel (1236–1279) Parents Matilda of Brandenburg, Duchess of Brunswick-Lüneburg Otto the Child Children Otto von Braunschweig Conrad von Braunschweig Albert II, Duke of Brunswick-Lüneburg William I, Duke of Brunswick-Lüneburg Henry I, Duke of Brunswick-Grubenhagen Luther von Braunschweig Matilda of Brunswick-Lüneburg Siblings Mathilde of Brunswick-Lüneburg Adelaide of Brunswick-Lüneburg John, Duke of Brunswick-Lüneburg Otto I of Brunswick-Lüneburg Helene of Brunswick-Lüneburg Elisabeth of Brunswick-Lüneburg Conrad of Brunswick-Luneburg Agnes of Brunswick-Lüneburg Partners Adelaide of Montferrat Elizabeth of Brabant
