Gergely was the son of György Lórántffy de Serke and Anna Berzeviczy de Berzevicze et Kakaslomnitz. The date and place of his birth have not been found.
Gergely Lórántffy de Serke
György Lórántffy de Serke
Lóránd Lórántffy de Serke (-<1417)
János Serkei (-<1406)
Katalin Lackfi
Anna Berzeviczy de Berzevicze et Kakaslomnitz