Wilhelm v.Braunschweig-Lüneburg	Helena af Danmark	Albrecht II. v.Brandenburg	Mathilde v.d.Niederlausitz
Otto I. v.Braunschweig-Lüneburg		Mathilde v.Brandenburg

Agnes v.Braunschweig-Lüneburg*c.1250, +n.18.3.1302/29.12.1302

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