Guernabui

Saint Guernabui is a Welsh saint of the undivided Church, a priest and disciple of Saint Dyfrig (Dubricius). According to the Book of Llan Ddv he was appointed head (princeps) of the monastic settlement at Garth Benni, which is identified with Welsh Bicknor, enfolded by the river Wye.

He had a pupil named Gurguare, probably meant to succeed him in the rule of the settlement. His name appears as a witness to several grants, beside Bishop Aidan and King Athruis of Gwent, in the form Guernapui of Garth Benni. Baring-⁠Gould writes that he does not appear to have been a founder, nor to have received any particular veneration. His name would be written Gwernabwy today.