At a subsequent period, when wars were levied in support of principles, and when men of honour and of virtue engaged on either side, as their early prejudices, investigations, or accidental experience induced them to believe that one or the other would prove most conducive to the public good――the Trevanions were less successful. They asserted their conviction in arms, that the country would be best governed by concentrating hereditary power in a single man; and Mr. John Trevanion, bearing a Colonel’s commission, shared in the military glories of the western army, and fell under the walls of Bristol. His father experienced the mitigated fate of those who were vanquished in this contest, by compounding for his estate; and when, after a long interval, his friends came again into power, and succeeded in placing at the head of affairs the son of their former chief, those immediately surrounding the seat of government possessed but slender means, and still less inclination, to risk their own safety by indemnifying those at a distance, who had suffered in the Good Old Cause. The grandson obtained however the popular reward of representing Cornwall in parliament; and the Editor has in his possesssion a letter addressed by Mr. John Trevanion to his great uncle Mr. Henry Davies, a hundred and twenty-five years ago, declaring his readiness to spend his fortune and to shed his blood, as his ancestors had done, in support of the same cause. This gentleman died in 1740, leaving William Trevanion his son and heir, and two daughters, the eldest of whom married John Bettesworth, LL.D. Dean of the Arches, and the younger married Admiral John Byron, well known in his younger days by a narrative of the disastrous expedition of the Wager Store ship, commanded by Captain Cheep, as a part of the fleet conducted by Commodore Anson round the promontory of South America, in the year 1740, and of his own adventures after the ship was wrecked on the coast of Patagonia, the dead reckoning giving them an erroneous longitude of fifteen degrees to the west, till his return in 1746. Admiral Byron is now better known as grandfather to the most popular of recent poets. William Trevanion served in parliament for the borough of Tregoney, and died in 1767 without children, when the male line of this family became extinct. He was succeeded by Mr. John Bettesworth, his sister’s son, and his son John Trevanion Purnel Bettesworth Trevanion, esq. is now the possessor of Carhayes, where he has substituted a magnificent gothic castle, after a plan of Nash, the architect of Buckingham Palace and of Regent Street, for the house described by Mr. Tonkin.