| Birth |
Between 1173 and 1174 |
| Died |
28 Apr 1227 |
Braunschweig, Niedersachsen, Deutschland  |
| Buried |
Dom zu Braunschweig, Niedersachsen, Deutschland |
| |
| Father |
Herzog Heinrich III von Sachsen, b. Between 1129 and 1230, Ravensburg, Baden-W |
| Relationship |
natural |
| Mother |
Prinzessin Mathilde von England, b. 1156 |
| Relationship |
natural |
| Married |
1168 |
| |
| Family 1 |
Gr Agnes von Landsberg |
| Married |
1211 |
| |
| Family 2 |
Agnes von Staufen, b. 1177 |
| Children |
| | 1. Pfalzgraf bei Rhein Heinrich VI von Braunschweig, b. Abt 1195 |
| | 2. Agnes von Braunschweig, b. Aft 1201 |
| | 3. Pfalzgr Irmgard bei Rhein, b. Abt 1200 |
|
| |
Abt 1195 - 1214 (19 years)
Pfalzgraf bei Rhein Heinrich V von Braunschweig, b. Between 1173 and 1174 d. 28 Apr 1227, Braunschweig, Niedersachsen, Deutschland 
1177 - 1204 (27 years)