Biography
Margarete von Braunschweig-Wolfenbüttel was born July 1451 in Wolfenbüttel to Heinrich II. von Braunschweig-Wolfenbüttel (1411-1473) and Helene von Kleve (1423-1471) and died 13 February 1509 Mainberg of unspecified causes. She married Wilhelm III. von Henneberg-Schleusingen (1434-1480) 5 November 1469 JL in Wolfenbüttel.
Children
| Name | Birth | Death | Joined with |
| Margarethe von Henneberg-Schleusingen (1475-1510) | 1475 | 20 February 1510 | Bernhard III. zu Solms-Braunfels (1468-1547) |
| Wilhelm IV. von Henneberg-Schleusingen (1478-1559) | 29 January 1478 | 24 January 1559 Schleusingen, Thuringia, Germany | Anastasia von Brandenburg (1478-1534) |