The couple arrived five minutes after the office opened.
The father of 3-year-old Aylan and 5-year-old Galip laid them to rest.
When Sister Norma Pimentel participated in a virtual papal audience hosted with ABC News, she was excited to see Pope Francis, but never expected him to address her.
The Latest: Gay couples get marriage licenses without signature, attorneys say they are valid
Drowned boys, mother, buried in Syrian hometown of Kobani they fled