Biography
Heinrich II. Welf von Braunschweig-Grubenhagen was born circa 1289 to Heinrich I. von Braunschweig-Grubenhagen (1267-1322) and Agnes von Thüringen (bef1264-aft1332) and died 1351 Grubenhagen of unspecified causes. He married Jutta von Brandenburg (c1306-c1325) 16 April 1318 JL . He married Heloise d'Ibelin (1307-aft1347) 23 August 1330 JL .
Children
| Name | Birth | Death | Joined with |
| Agnes von Braunschweig-Grubenhagen (c1318-bef1371) | 1318 | 1371 | Barnim III. von Pommern-Stettin (c1300-1368) |
| Otto von Braunschweig-Grubenhagen (1320-1399) | 1320 | 1 December 1399 Foggia | Violante of Vilaragut (c1320-bef1372) Joanna of Naples (1328-1382) |
| Johann von Braunschweig-Grubenhagen (1321-c1371) | |||
| Ludwig von Braunschweig-Grubenhagen (1323-aft1373) | |||
| Name | Birth | Death | Joined with |
| Philip von Braunschweig-Grubenhagen (c1332-1370) | 1332 | 1370 | Heloise de Dampierre (c1334-bef1368) Alix d'Ibelin (c1304-aft1386) |
Footnotes (including sources)
| ‡ General |