Illidius of Clermont

Saint Illidius of Clermont (in French, Allyre) was bishop of the city of Clermont in Gaul in the fourth century and reposed in the year 385. To him is attributed the rise of Clermont-⁠Ferrand as a centre of religious teaching and culture. Saint Gregory of Tours mentions him in his writings.

According to tradition, he healed the daughter of the emperor Magnus Maximus at Trier and died on the way home. His tomb drew many pilgrims. At Clermont, the fountain of Saint Allyre is known for its water, which turns objects to stone through limestone deposits.

He is commemorated on 5 June as a saint of the West before the Great Schism (a saint of the undivided Church), by the New Calendar.