Barnabás was born on August 22nd, 1899 in Aranyos. Barnabás' father was József Réti and his mother was Eszter Borza. He had a brother and a sister, named Barnabás and Zsanet. He was the oldest of the three children. He died as an infant, veleszületett gyengeség, at just 17 days old on September 8th, 1899 in Aranyos.