István was the son of unknown parents. The date and place of his birth have not been found.
His wife was Petronella Kemény de Magyargyerõmonostor, who he married in AFT 1681. The place has not been found. They had no known children.
Note 1
György, Küküllő vármegye főispánja (Comes of Küküllő), *1588, +18.2.1635; m.Borbála Petky de Derzs (+1660)