Though, at the time of the inquisition of the Bishops of Lincoln and Winchester, 1294, into the value of Cornish benefices, this parish church was rated then by the name of Ecclesia de Mawnan, in decanatu de Kerryer, 4_l._ 3_s._ 8_d._ In Wolsey’s inquisition, 1521, 14_l._ 16_s._ 1_d._ The patronage formerly in Killygrew, afterwards Rogers, now Kempe. The incumbent Trewinard; and the parish rated to the 4_s._ per pound Land Tax, 1696, by the name of Mawnan, 72_l._ From Pen-gwarne alias Pen-warne, synonymous words, was denominated an old English family of gentlemen now in possession thereof, surnamed De-Penwarne (who by possession of those lands is bailiff or lord of the bailiwick of the hundred of Kerryer by inheritance), whose ancestors have been seised and possessed thereof, beyond the records of time, and have been possessed in former ages of divers other lands of considerable value in those parts. Particularly Richard Penwarne, Esq. that married one of the coheirs of Tencreeke, Member of Parliament for Penryn, temp. James I.; whose son Robert married the daughter of Robinson of London, who had issue the present possessor, Robert Penwarne, Esq. that married Sprye of Tregony, and hath issue; that giveth for his arms, in a field Sable a chevron between three fleur-de-lis Argent. TONKIN. The manor of Trevose, that is, the town in the valley, from its principal mansion so called, where are the ruins of a very large house, as having been formerly a seat of the Killigrews, and particularly in J. Norden’s time of Sir William Killigrew, to which family, together with other lands adjoining, I suppose it came by their marriage with the daughter and heir of Arwinick. This property was sold to Sir Nicholas Slanning of Marystow in Devonshire, who I believe made this place his residence, while he was Governor of Pendinas Castle. This was the famous Sir Nicholas Slanning, so much cried up for his valour, who had a chief command in the King’s army, and was killed before Bristol in July 1643. He left a son of the same name, then an infant, who was made a Baronet by King Charles II. in 1662, as he had been before that one of the Knights of the Bath at his Majesty’s Coronation; which Sir Nicholas Slanning gave for his arms, Argent, two pales ingrailed Gules, over all a bend Azure, charged with three griffin’s heads erased Or.