The holy well (with reputed healing properties) that bears his name is thought to be associated with this period, though the ‘cell’ that houses it is a much later construction.
Credir bod y ffynnon sanctaidd (sydd â phriodweddau iachau honedig) sy’n dwyn ei enw yn gysylltiedig â’r cyfnod hwn, er bod y ‘gell’ sy’n gartref iddi wedi’i hadeiladu’n llawer diweddarach.