Seyfried was the son of Seitz Marschall von Oberndorf and Imagina von Reichenbach. The date and place of his birth have not been found.
He died after 1392. The place is not known.
His wife was Anna von Haslang, who he married in BEF 1382. The place has not been found. Their only known child was Georg (?-<1434).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1392 |
|