Afterwards he led a party of 188 monks across the sea to Cornwall, where they were hospitably received by Mevor, a prince of the country, and Gudwal founded a monastery not far off (according to the Bollandists, in Devon).
After his death his monks carried his body to Montreuil in Picardy, and it eventually, in 955 or 959, found a resting-place in the monastery of Blandinberg at Ghent, where his festival was kept on 6 June.
Such is briefly the legend as given by the Bollandists, but Surius and Malbrancq make Mevor a native of Picardy, reading Corminia (Cormont) for Cornuvia (Cornwall), and say that it was there that Gudwal established his monastery.
The parish of Gulval, near Penzance, is dedicated to him, and there is a celebrated holy well there, but the old oratory has been destroyed.
The full life is printed in the 'Acta Sanctorum,' and abbreviations of it are given by Capgrave and Surius.