Altmann was the son of Ernst I von Grögling-Hirschberg and Richlind. The date and place of his birth have not been found.
Altmann I von Grögling-Hirschberg
Ernst I von Grögling-Hirschberg (-1096/97)
Hartwig II von Grögling-Hirschberg (-1068/69)
Hartwig I von Grögling-Hirschberg (-1034)
Aviza von Kühbach
Altmann II von Kühbach
Richlind