When did that happen?
That happened in the middle ages. I forget the name of the Church, but it is identifiable by the Hebrew language carved onto its exterior front wall.
More recently -- in the 19th century -- a Jewish boy named Edgar Mortara who was ill was supposedly baptized by his family's maid. Later she squirreled him away into the shadows of the Catholic church and, despite the efforts of his family and governments from around the world (including America) the Church refused to release him back to his family. Eventually he was found living as a Monk.
But good news for Missyme: He kept to his adopted faith for the rest of his life.