Biography
Sofie Welf von Braunschweig-Lüneburg was born circa 1358 to Magnus II. Torquatus von Braunschweig-Lüneburg (c1328-1373) and Katharina von Anhalt-Bernburg (c1330-1390) and died before 28 May 1416 of unspecified causes. She married Erich IV. von Sachsen-Lauenburg (1354-1412) 8 April 1373 JL .
Children
| Name | Birth | Death | Joined with |
| Erich V. von Sachsen-Lauenburg (c1374-bef1429) | |||
| Johann IV. von Sachsen-Lauenburg (c1377-1414) | |||
| Albrecht von Sachsen-Lauenburg (c1384-1421) | |||
| Bernhard II. von Sachsen-Lauenburg (c1385-1463) | 1385 | 16 July 1463 | Adelheid von Pommern (1410-aft1445) |
| Agnes von Sachsen-Lauenburg (c1387-bef1415) | 1387 | 21 December 1415 | Albrecht II. von Holstein-Schauenburg (-1403) Wartislaw VIII. von Pommern (1373-1415) |
| Magnus von Sachsen-Lauenburg (c1390-1452) | |||
| Otto von Sachsen-Lauenburg (c1394-bef1431) | |||
| Sophie von Sachsen-Lauenburg (c1395-1462) | 1395 | 1462 | Wartislaw IX. von Pommern (c1400-1457) |
| Margarethe von Sachsen-Lauenburg (c1397-bef1422) | |||
| Katharina von Sachsen-Lauenburg (c1400-1450) | 1400 | 2 September 1450 | Johann VII. von Werle (-1414) Johann IV. zu Mecklenburg (bef1370-1422) |
Footnotes (including sources)