High Quality Content by WIKIPEDIA articles! The Church of St Morwenna and St John the Baptist, Morwenstow is in the parish of Morwenstow, north Cornwall, United Kingdom (grid reference SS205153), the most northerly in Cornwall. The church is dedicated to Morwenna, a local saint, and to John the Baptist, and is a Grade I listed building. It is an active Anglican parish church in the diocese of Truro, the archdeaconry of Bodmin and the deanery of Stratton. Its benefice is combined with that of St James, Kilkhampton.