Feves are baked in a cake for Twelfth Night (Three Kings Night or Epiphany); the person who finds it becomes king of the feast. The name feve is the word for "bean" and originally beans were baked in the cake, but since around 1960 it has been ceramic trinkets. If there are two, one is for a king and one for a queen.
St Nicolas is part of a set of seven
Noel d'Europe feves: Pere Noel, Pere Givre, La Befana, St Lucie, Babouchka, and Wenceslas.