istvan had a daughter julia who emigrated to canada and became a pediatrician in montreal. istvan had a brother miklos barta who was murdered by the nazis, istvan had 2 nephews and a niece through his brother miklos. the oldest giz folden née barta born in budapest in 1926 lives in australia . giz was married to imre folden who died in 1984, together they had 2 sons tom folden and peter, both played water polo in australia at a very competitive level. tom folden has 2 sons shanon and gavin, intern shanon has 3 sons and gavin a son and daughter.