He is believed to have settled at the site of Tintagel Castle at the end of the 5th century and established a small monastic community.
He is the patron of the parish churches of St Juliot and of Lanteglos by Camelford.
The Norman chapel of Tintagel Castle is dedicated to St Julitta.
One was Julitta of Caesarea, a widow venerated by Saint Basil who left a testimony of her life on the 70th anniversary of her death.
All three are martyrs in the 3rd or 4th century and considered saints both in the Eastern and the Western Rite Christian churches.