The parish church (Norman with some later mediaeval work) is dedicated to Saints Hyacinth and Protus. (Locally the saint would be called St Pratt rather than Protus.) Dr Sidney J. Madge published in 1950 a good account of the church and its two patron saints entitled "Blisland Church and its Patron Saints"; a 2nd edition was issued in 1965 with a preface by John Betjeman. Charles Henderson, writing in the "Cornish Church Guide" (1925) suggests that Lavethan (formerly Lanedewen) may record the original dedication of the church since the second element may be St Adwen (patron of Advent). The present form of the dedication relies on identifying the St Pratt of tradition with St Protus Martyr.