Patron and presumably church-founder of Ludgvan (Cornwall), where there is also a holy well. His feast, according to the Cornish Kalendar, is not ‘certainly known’. Baring-Gould, however, on the flimsiest evidence, identifies him with St Lithgean of Clonmore, whose feast is on 16 January. He also asserts that Ludwan's feast was on 27 January. It seems much safer to say that nothing is known about him.
C.C.K.; Baring-Gould and Fisher, iii. 362–4.