 St. Cassian, St. Honoratus, and St. Porcarius of Lérins, St. Caesarius of Arles, St. Germanus, and St. Lupus also used it, and St. Germanus taught it to St. Patrick, who brought it to Ireland.There "Wandilochus Senex" and "Gomorillus" (Comgall) used it and St. Wandilochus and Columbanus brought it to Luxeuil.The part of the story from St. Germanus onwards may possibly be founded in fact.