Katalin was born on October 8th, 1859 in Eger. Katalin's father was István Körtvélyesi and her mother was Ágnes Puha. She had five brothers and two sisters, named Ferenc, András, Mihály, István, Magdolna, Mária and Anna. She was the youngest of the eight children. She died at 1 months old on November 12th, 1859.