Calendar of Scottish Saints – Saint Constantine, King and Martyr, A.D. 590

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11 March. This saint was a British king who reigned in Cornwall. His early life was stained by many crimes, but, becoming converted to piety, after his wife’s death he entered the monastery of Menevia, now known as Saint David’s, that he might expiate his sins by penance. Saint Kentigern, then an exile in that same monastery, exhorted him to devote himself to preaching the Faith in Cumbria. Saint Constantine accordingly founded a monastery at Govan, in Lanarkshire, where he became abbot, and from whence he and his disciples preached Christianity to the people of the surrounding country. He converted the people of Cantyre, and met his death in that district at the hands of the enemies of his teaching. He was buried at Govan, where the church bears his name. Kilchousland in Cantyre takes its name from him. The ancient church of Kinnoul, near Perth, and that of Dunnichen, Forfarshire, were also dedicated to this saint; at the latter place was Saint Cousland’s (or Causnan’s) Fair, and some remains of Saint Cousland’s chapel are there still. The water of his well at Garrabost, in Lewis, known as Saint Cowstan’s, is said never to boil any kind of meat, however long it may be kept over a fire. The feast of this saint was restored by Leo XIII.

MLA Citation

  • Father Michael Barrett, OSB. “”. The Calendar of Scottish Saints, 1919. CatholicSaints.Info. 2 February 2014. Web. 16 November 2018. <>