Biography
Heinrich IV. zu Mecklenburg was born 1417 to Johann IV. zu Mecklenburg (bef1370-1422) and Katharina von Sachsen-Lauenburg (c1400-1450) and died 9 March 1477 of unspecified causes. He married Dorothea von Brandenburg (1420-1491) May 1432 JL .
Children
| Name | Birth | Death | Joined with |
| Albrecht VI. von Mecklenburg (1438-1483) | |||
| Ulrich von Mecklenburg (1437-1437) | |||
| Johann VI. zu Mecklenburg (1439-aft1474) | |||
| Magnus II. zu Mecklenburg (1441-1503) | 1441 | 20 November 1503 Wismar | Sophie von Pommern (1468-1504) |
| Katharine von Mecklenburg (1442-1451/1452) | |||
| Anna von Mecklenburg (1447-1464) | |||
| Elisabeth von Mecklenburg (1449-1506) | |||
| Balthasar von Mecklenburg (1451-1507) | |||
Footnotes (including sources)
| ‡ General |