Szilárd Bogdánffy was born on February 21, 1911 in the village of Feketetõ, then part of Torontal district, Austria-Hungary; today called Crna Bara, near the town of Kikinda, district Northern Banat, autonomous province of Vojvodina, Serbia. He lived there with his family until 1925. He was baptized in the parish church of Čoka to which his village belonged and where his father was a cantor.