By the western church calendar, today is the feast of St. George. He’s the patron saint of the military, and of England and Catalonia. The George Cross is part of the Union Jack flag, although today celebrating the feast in England is sometimes considered suspect, unless it is a purely religions and private veneration.

St. George is one of those saints that lacks firm written sources, and is considered a wee bit suspect by the Roman Catholic Church. He remains popular in the Eastern Orthodox churches, and in the Church of England (or at least with followers of the Church of England.) There’s also a city in Utah named for him, which makes me giggle a bit. He’s not exactly the same sort of Saint as the Saints, Latter-day, who founded the town.

I want a copy for my church, but I don’t think the decorating committee would agree. Or the fire marshal. From: https://www.pinterest.com/pin/the-15th-century-statue-of-st-george-and-the-dragon-is-carved-from-oak-and-elk-horn-many-stockholm-residents-believe-this-statue-sy–330381322638029098/
St. George is thought to have been martyred on April 23, AD 303. He was born in what is now western Turkey, and since his father was a Roman soldier, he had to go into the army (like St. Martin of Tours, and several others.) The official version of the story is that he was martyred for refusing to make the sacrifices required by Diocletian’s anti-Christian edicts. There are no dragons in the official version. Alas.
The popular version is that George was in northern Libya, where a dragon had moved in, taken over a spring, and was killing the locals, their livestock, and everything else in the area. Various young ladies were offered to the dragon in hopes of appeasing it. George arrived and said that he, with the help of G-d, would deal with the beast. He did, did not ask to marry the young lady of the day, but instead preached the Gospel and converted the people.
In some versions of the story, he killed a dragon in England as well, thus he is the patron of England, as St. Andrew is the patron of Scotland and St. David (Dawi Sant) protects Wales. (Before George it was St. Edmund the Martyr.)
There was a much more elaborate, highly unofficial version, of the story of St. George that I have only heard and seen once, and that was in a chapel in a castle in the Czech Republic. It is much more detailed, with further adventures, and includes George being killed three times and coming back to life twice. I can guess why that version does not appear in church art or the semi-official depictions of the saint.
St. George also appears as a character in the winter pantomimes (Pantos) in England. Some folklorists see him as a stand-in for the Green Knight, the Oak King, the symbol of summer, killed by the Holly King/winter.