János was born on November 4th, 1890 in Monor.1 János' father was János Peterdi and his mother was Julianna Rizmayer. His paternal grandparents were János Peterdi and Borbála Csóbod. He had a sister named Anna. He was the older of the two children. He died at the age of 3 on January 3rd, 1894 in Monor.1