The parish saint disguised under the name 'Tewennocus' is almost certainly St Winwalo (pet-form: Winnoc), also commemorated at Gunwalloe and Landewednack, as well as Landevennec, Brittany: the place-name being derived from Old Cornish "te-Winnoc" (thy St Winnoc Winwalo), now represented as Late Cornish Te Wydnek.