Wilhelm Longsword of Winchester Welf von Braunschweig-Lüneburg was born 11 April 1184 in Winchester to Heinrich der Löwe (c1130-1195) and Matilda of England (1156-1189) and died 13 December 1213 of unspecified causes. He married Helen of Denmark (c1174-1233) 1202 JL . William I of England (1027-1087), Henry II of England (1133-1189), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Hugh Capet (c940-996)/s, Rollo of Normandy (860-932)/s.
Children
| Offspring of Wilhelm von Braunschweig-Lüneburg and Helen of Denmark (c1174-1233) | |||
| Name | Birth | Death | Joined with |
| Otto von Braunschweig-Lüneburg (c1204-1252) | 1204 | 9 June 1252 Lüneburg, Lower Saxony, Germany | Mechthild von Brandenburg (c1210-1261) |
Footnotes (including sources)
| ‡ General |
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