CUBY (CYBY) (Saint) Bishop (November 8) (6th century) A Cornish Saint, a cousin of Saint David of Wales. Consecrated Bishop, he with ten disciples settled near Tregony, but later passed some time in Ireland. In the end he came to Wales and founded a monastery near Holyhead. He is the Patron Saint of Llangybi (Monmouth) and of Llangibi (Carnarvon). The exact date of his death is not known.