No founder, establishing document, or reason for the June 5 date has been located. The day appears on holiday listing sites and circulates in social posts each June.
The king's son who gave it away
According to tradition, Judoc was a son of Juthael, King of Brittany. In approximately 636 he renounced his inheritance, was ordained on a pilgrimage to Rome, and settled as a hermit. The place is now called Saint-Josse-sur-Mer, and his feast day is 13 December.


