This place ranks among the principal seats in Cornwall. It stands on a commanding situation, possesses extensive plantations, and looks over those to the south and east into vallies highly cultivated and rendered beautiful by wood and water, the two most pleasing ingredients in rural landscapes. The house was in part built by Mr. Courtenay Williams, who is said to have dissipated a handsome fortune by indulging himself in low pursuits and in low company, and especially by maintaining a set of people to accompany him from parish to parish, for (what seems quite ludicrous in present times) the purpose of ringing the bells; yet about the middle of the last century a new peal of bells was procured for Kenwyn Church, to accommodate the principal inhabitants of Truro with that exercise and amusement. After the purchase of this place, together with the manor of Probus, the appropriated share of the great tithes, the lease under the Church of Exeter conveying the remainder part for lives, &c. Mr. Philip Hawkins made Trewithan his residence, and represented Grampound in three or four Parliaments in the Reign of George the Second; but not having any family himself, nor his brothers, almost the whole of their landed properties were devised to their eldest sister Mary, who had married her distant relation, Mr. Christopher Hawkins of Helston, and of Trewinnard in St. Erth. Their only son Mr. Thomas Hawkins, succeeded his uncle at Trewithan, and also represented Grampound: he married Ann, daughter of James Heywood, esq. of London; but being unfortunately taken out of this life while he endeavoured to introduce the most important discovery ever made in medicine, for the benefit of others as well as of himself, he left five children minors, Philip, Christopher, Thomas, John, and a daughter. Philip and Thomas died in early life; the estate, therefore, devolved on Christopher, who having never married, died in May 1829, and in consideration probably of the large fortune possessed by his brother, devised the whole of his real property to Henry Hawkins, his brother’s younger son, then about eight years old, to whom it now belongs. But the affair which most peculiarly distinguishes this parish is the persecution of Mr. Tregion.