Family: Duke of Brunswick-Lüneburg I Albert / Adelheid (F12285)
Duke of Brunswick-Lüneburg I Otto (1204-1252) 
|
 | Matilda of Brandenburg (1210-1261)
|
| Elizabeth ( -1266) |
| Helen ( -1273) |
| Adelaide ( -1274) |
| Matilda (Unknown) ( -1295) |
| John ( -1277) |
| Otto ( -1279) |
| Conrad ( -1300) |
| Marquess of Montferrat II Boniface (1202-1253)
|
 | Duke of Brunswick-Lüneburg I Albert (1236-1279)
|
Duke of Brunswick-Lüneburg II Albert (1268-1318)  |
| Henry (1267-1322) |
| William (1270-1292) |
| Otto ( -1346) |
| Matilda (Unknown) ( -1310) |
| Lothar ( -1335) |
| Conrad ( -1303) |
