He became a monk and built a chapel at Dryburgh, Scotland, in 522 which he used as a base for several years.
He actively proselytised on behalf of the Celtic church in the Falkirk and Stirling areas, and along the Forth, continuing until he was elected abbot, a post which he accepted reluctantly.
After a number of years he resigned and became a hermit, settling in the Dumbarton area, where he would die.
His relics were enshrined at Saint Modan's church, Rosneath.
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