The most famous Christmas hymn ever written is “Silent Night”. It’s even more famous than “Grandma Got Run Over by a Reindeer”. It’s author, Joseph Mohr, penned the words on December 11, 1792, in his native Salzburg, Austria and this is the cathedral where he sang as a boy. He came from a very rough childhood as his mother’s 3rd illegitimate child. Because of his shame he couldn’t get into any schools, but he could sing, and the local priest heard him and it changed his life. An organist named Franz Gruber wrote the music.