Very little is known about Evermlus who built a chapel to St Bartholomew where it is stated that he was buried.
Very little is known about him. He seems to have built a chapel to St Bartholomew near his hermitage, which might indicate that he had been on a pilgrimage to Rome, where St Bartholomew was venerated in a church on an island in the Tiber. An epitaph to Everelmus, stating that he was buried in the church, survived in the church of St Bartholomew until the French Revolution. 
