The ancestor of this ancient and famous family of the Mohuns came into England with William the Conqueror, by the name of William Mowne or Sapell, and was after the Conquest by him made Governor of Dunster Castle, who had issue William Mowne the second Lord of Dunster Castle, whose son, the third William, as Matthew Paris saith, did keep and fortify the same against King Stephen, for the use of Maud the Empress. It is told us by our chronologers and historians, that he was made Earl of Somerset by King Henry the First, 1135, and that he was founder of a priory of Black Canons of Bruton in Somersetshire, where Edgar Earl of Cornwall had before founded an abbey of Benedictine monks. (Vide Monasticon Anglicanum, tom. ii. p. 205,) to which charter were witnesses William de Moyn, his son, and others. This William Earl of Somerset had issue another William, who is said also to have been Earl of Somerset: but Brooke, York Herald, says that this William and his son Reginald Lord Dunster both died in the time of William Earl of Somerset, so that Reginald de Moyn his grandson was the second and last Earl of Somerset of his name and family, who lost this hereditary office by siding with the Barons against King Henry the Third, A.D. 1297, after it had remained in his family about fifty years. After the family became private gentlemen at Boconnoc, their names are found sometimes noticed; the first Sheriff of Cornwall, 6th Edw. VI. 1 Eliz. 13 Eliz. and 19 Eliz. TONKIN. Bo-con-oke; the name is Gaulish-Saxon,――the town or village of Stunt Oke. After copying Mr. Hals’ narrative, Mr. Tonkin adds, Charles Lord Mohun, the last Baron of this family, being killed in a duel by the Duke of Hamilton, on the 5th of November 1712, left his whole estate by will, dated some time before, to his widow, who sold all the Cornish and Devonshire estates in 1717 for fifty-four thousand pounds (a very cheap bargain) to Thomas Pitt, Esq. commonly called Governor Pitt, in whose possession the manor of Boconnoc now remains. This Charles Lord Mohun was a nobleman of very bright parts, and great natural endowments both of body and mind; but having had the misfortune to lose his father, while he was yet in the cradle――and the estate being left to him much involved in lawsuits between his nearest relations, and with a considerable debt――he had not an education bestowed on him suitable to his birth; and happening to fall into ill company, he was drawn into several extravagancies: but, however, as his years increased, he became so much reclaimed as to give great hopes that he would one day equal the greatest of his predecessors; when he was thus unfortunately cut off in the flower of his age.