Padarn was born in the late 5th century in Brittany. His parents were devout Christians and Padarn decided to devote himself to a life of prayer and fasting. He journeyed to Britain and established a monastery at Llanbadarn Fawr near Aberystwyth which became a diocese with Padarn as its bishop. He remained here for 21 years. The monastery became a great centre of learning and at one time had a library larger than those in Canterbury and York. It is said that Padarn visited Ireland where his father had become a hermit and also travelled to Jerusalem with St David and St Teilo. Padarn died about 550 and may be buried on Ynys Enlli (Bardsey Island). His feast is observed on 15th April.