It’s interesting to see Catholics don't have any ideas about the origin of Fatima. In Singapore, I found a few churches' named after Fatima, a lady of Fatima Church (St Josephs) located on Victoria St. I used to pass that church every day. When I saw my Portuguese friend Strava, I also saw some names with Fatima related to his city map. I once asked my Portuguese friend, did you know who Fatima is? He had no idea 😄😄. He thought a saint or somebody.