Francis I of France was only referred to as Good King Frank.
At the ironic ending of Frederik Pohl's Science Fiction novel Jem, human colonists on a faraway planet developed the habit of celebrating Christmas by taking off their clothes and engaging in a wild orgy, their copulations accompanied by a chorus of the planet's enslaved indigenous beings singing "Good King Wenceslas", whose Christian significance was long forgotten
 not without hope that, with the present wealth of carols for Christmas, Good King Wenceslas may gradually pass into disuse, and the tune be restored to spring-time

