[1] He had a sister, who married a certain Dominic[2] and a brother John the Wolf, who was presumably born after Gregory's death, and integrated into the Austrian nobility.
[3] He also had a stepbrother from his father's extramarital affair, Nicholas (born 1282), who entered ecclesiastical career and elevated into the dignity of Bishop of Győr.
[4] Gregory had two sons from his unidentified wife: Nicholas III and Andrew, who were still minors during his death and inherited their grandfather's wealth and power after 1308.
[7] Gregory shared his father's political orientation in order to establish their independent province at the borderlands between Austria and Hungary.
The Continuatio Vindobonensis described Gregory as a "very bad man, the most worthless robber", thus, as the chronicle noted, "it is not surprising" that he was killed by a lightning strike in 1297.