Madrun

Saint Madrun (Materiana, Madryn, Merteriana) is a Welsh saint of the fifth century, patron of two churches in Cornwall and one in Wales. The name Materiana was corrupted in the Middle Ages to Marcelliana. Tradition says she was a princess, the eldest of the three daughters of King Vortimer the Blessed, and that after her father's death she ruled over Gwent with her husband Prince Ynyr. When her grandfather's wooden castle was surrounded and set on fire, she and her eldest son Ceidio fled to the hill of Carn Fadryn; later Ceidio founded a church below the hill. Her main church is the parish church of Minster, dedicated under the name Merteriana. She is a saint of the undivided Church, commemorated on 9 April (new style; 22 April in the old style).