János was the son of Tamás Farkas de Harinna et Szeszárma but his mother is unknown. The date and place of his birth have not been found.
He had two marriages/partners. His first wife was Margit Bolgár de Tuzson. They were married, but the date and place have not been found. They had no known children.
His second wife was Potenciána Szentkirályi. They were married, but the date and place have not been found. They had no known children.