Sándor was born on December 25th, 1866. Sándor's father was Sándor Kossa Magyary and his mother was Róza Schóber. His paternal grandparents were Sándor Magyary and Erzsébet Csabi. He had a brother and two sisters, named Sándor, Ilona and Róza. He was the oldest of the four children. He died at just 1 days old on December 26th, 1866 in Budapest.1