The interactions between Pope Francis and children have been among the most memorable in his time as Pope. Children also seem to have an affinity for him.
So, the celebration taking place on Sunday, could leave behind some very memorable scenes. It's a yearly tradition to mark the feast of the Baptism of the Lord.
It'll be the first time Pope Francis baptizes a group of newborns. The majority will be the children of Vatican employees. But also among them will be the son of a woman the Pope had called personally during the summer, when she wrote to him saying she had considering having an abortion.
The event will be joyful, and will take place inside the historic Sistine Chapel. Like Pope Francis told pilgrims at the General Audience this week, the baptism will welcome these children into the Church. And though they may be small now, it'll be hard for them to forget the date of their baptism.