Family Group Sheet| HUSBAND | | Heinrich III-XII "der Löwe, the Lion" Welf V (MB6W-V2V) | | BIRTH | 1129 | Ravensburg, Tubingen, Baden-Wuerttemberg, Germany | | DEATH | 6 August 1195 | Braunschweig, Braunschweig, Niedersachsen, Germany | | REF # | | 3946816; | | REF # | | | | REF # | | 60; | | MARRIAGE | 1 February 1168 | St Peter, Domkirche, Minden, Germany | | FATHER | Heinrich Bayern (94BF-GM9) | | MOTHER | Gertrude Supplinburg (PM91-NX7) | | | | WIFE | | Matilda Plantagenet (L2B6-W8C) | | BIRTH | about 1156 | London, England | | DEATH | 13 July 1189 | Braunschweig (Brunswick), Niedersachsen, Germany | | REF # | | 108983; | | REF # | | | | REF # | | 60; | | FATHER | Henry Plantagenet (KF9B-5NY) | | MOTHER | Eleanor Aquitaine (G1G7-F78) |
| | | CHILDREN | | 1. | Richenza "Mathilde, Mahaut" Sachsen (GHRC-SSQ) FEMALE | | | BIRTH | 1171 | Braunschweig, Germany | | DEATH | 13 January 1209 | | | REF # | | 3706372; | | REF # | | | | REF # | | 60; | | MARRIAGE | January 1188 | Geoffrey Perche (G39V-59C); Rouen, Seine-Maritime | | MARRIAGE | | Enguerrand Coucy (LRCT-PC5); | | MARRIAGE | 1202 | King Valdemar "the victorious, Sejr" Valdemarsson II (L8MR-J54); |
| | 2. | Heinrich "The Long" Saxony VI -I MALE | | | BIRTH | 1169 | of Braunschweig, Brunswick, Germany | | DEATH | 1204 | | | REF # | | 1695735; | | REF # | | 1722015; | | REF # | | 60; |
| | 3. | Lothar Saxony (G2F6-TZC) MALE | | | BIRTH | 1171 | Braunschweig, Braunschweig, Niedersachsen, Germany | | DEATH | 16 October 1190 | Augsbourg | | REF # | | 1695479; | | REF # | | 1721759; | | REF # | | 60; |
| | 4. | Otto IV Welf MALE | | | BIRTH | 1175 | Braunschweig, Braunschweig, Niedersachsen, Germany | | DEATH | 19 May 1218 | | | REF # | | 3946810; | | REF # | | 4019694; | | REF # | | 60; |
| | 5. | Wilhelm "Herzog von Lüneburg, William Longsword of Winchester, The Elder" Welf (GBGH-5JC) MALE | | | BIRTH | 11 April 1184 | Winchester, Hampshire, England | | DEATH | 12 December 1213 | Luneburg, Brunswick, Thueringen, Germany | | REF # | | 10065144; | | REF # | | 10627966; | | REF # | | 60; |
| | 6. | Eleanore UNKNOWN FEMALE | | | BIRTH | about 1186 | of Germany | | REF # | | 2057146; | | REF # | | 2085873; | | REF # | | 60; |
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