Erasmus was the son of Heinrich IV von Ortenburg and Agnes von Hals. The date and place of his birth have not been found.
|
Heinrich IV von Ortenburg |
Heinrich III von Ortenburg |
| ||||||
| | ||||||||
|
Adelheid von Schaunberg |
Heinrich IV von Schaunberg |
+ | ||||||
|
Agnes von Neuhaus |
||||||||
|
Agnes von Hals |
Alram V von Hals |
| ||||||
| | ||||||||
|
Agnieszka Głogowska |
Henryk III von Schlesien-Glogau |
+ | ||||||
|
Mathilde von Braunschweig-Lüneburg |
+ |