László was the son of László de Réva but his mother is unknown. The date and place of his birth have not been found.
His wife was Anna Eszteleky. They were married, but the date and place have not been found. Their eleven known children were János (?-1511), István (?-?), Magdolna (?-?), Katalin (?-?), Ferenc (1489-1553), Veronika (?-?), Judit (?-?), Ilona (?-?), Fausta (?-?), Angelika (?-?) and Rebeka (?-?).