Ilona was born on July 1st, 1919. Ilona's father was Ferenc Asbóth and her mother was Anna Plejer. Her paternal grandparents were János Asbóth and Anna Horváth. She had a brother and a sister, named József and Klára. She was the oldest of the three children. She died at just 8 days old on July 9th, 1919.