I wouldn't think it's a given they were born in December (most holiday/month/season names are not literally descriptive anymore, in my experience) or Christian. It does sound Christian, pagan, or generally northern European.
~ song of the week: "Ne Pleure Pas"
https://youtu.be/fgkpfWEGqcgThis message was edited 11/25/2021, 10:14 AM