There is this guy name Quasi Motto and he was crowned the King of Fools for one of the days that he had. They also had another holiday on that day. The Epiphany and the Festival of Fools. The way you got crowned for the King of Fools is whoever could make the ugliest face. My understanding is they would stick their head out a window and then come back with an ugly face.
The part that I just read there is the characters are Captain Phoebus, Esmeralda, and Claude Frollo. Claude does not want Capt to marry Esmerelda, but the Capt doesn't know that. Claude is in a black cape and Capt does not know that it is Claude. Check out this book!