Nielsen Hayden genealogy
Ancestors of Agnes of Brunswick-Lüneburg
- 1302 ┌── Heinrich of Saxony (1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany)
│ (m. Between 1167 and 1168) =>
┌── Wilhelm of Brunswick-Lüneburg (11 Apr 1184 Winchester, Hampshire, England -
│ 13 Dec 1213 Lüneburg, Lower Saxony, Germany)(m. Jul 1202 Hamburg, Germany)
│ 13 Dec 1213 Lüneburg, Lower Saxony, Germany)(m. Jul 1202 Hamburg, Germany)
│ └── Matilda of England (1156 London, England - 13 Jul 1189)(m. Between 1167 and 1168) =>
│
┌── Otto I of Brunswick-Lüneburg (1204 - 19 Jun 1252)
│ │
│ │ ┌── Valdemar I den Store, King of Denmark (14 Jan 1131 - 12 May 1182 Vordingborg, Denmark)
│ │ │ (m. Abt Sep 1157) =>
│ └── Helene of Denmark (Abt 1180 - 22 Nov 1233)(m. Jul 1202 Hamburg, Germany)
│ └── Sofie of Polotsk (Abt 1141 - 5 May 1198)(m. Abt Sep 1157) =>
│
Agnes of Brunswick-Lüneburg ( - 18 Mar 1302)
│
│ ┌── Otto I of Brandenburg (Abt 21 Jun 1126 - 7 Mar 1184) =>
│ ┌── Albrecht II of Brandenburg (Abt 1177 - 25 Feb 1220)(m. Aug 1205)
│ │ └── Adelheid
│ │
└── Matilde von Brandenburg (Abt 1210 - 10 Jun 1261)
│
│ ┌── Konrad von Nieder-Lausitz (Abt 1156 - 6 May 1210)(m. Aft 29 Jan 1180) =>
└── Mathilde von Nieder-Lausitz ( - 1255)(m. Aug 1205)
└── Elisabeth of Poland ( - 2 Apr 1209)(m. Aft 29 Jan 1180) =>