Miklós was born on October 10th, 1968. Miklós' father was Béla Magyary-Kossa and his mother is Margit Pöntör. His paternal grandparents were Géza Magyary-Kossa and Jolánta Magyary-Kossa. He had a brother named Zsolt. He was the older of the two children. He died at 11 months old on October 4th, 1969.