Biography
Günther IX. von Schwarzburg-Blankenburg, Graf von Schwarburg-Blankenburg, was born on an unknown date to Günther VII. von Schwarzburg-Blankenburg (1210-1274) and Sofie (c1215-aft1268) and died 1289 of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Albrecht IV. von Schwarzburg-Blankenburg (-1237) | |||
| Heinrich VI. von Schwarzburg-Blankenburg (-c1293) | |||
| Günther XII. von Schwarzburg (-1308) | 24 October 1308 | Mechiltd von Käfernburg (-c1334) | |
| Günther XIII. von Schwarzburg-Blankenburg (-aft1301) | |||
| Adelheid von Schwarzburg-Blankenburg (c1254-1319) | 1254 | 21 July 1319 | Günther VII. von Käfernburg (c1250-1302) |
| Johann I. von Schwarzburg-Blankenburg (-c1303) | |||
| Sophie von Schwarzburg-Blankenburg (-c1346) | |||
| Elisabeth von Schwarzburg-Blankenburg (-aft1308) | |||
Footnotes (including sources)
| ‡ General |