(69) Lady Elizabeth Seymour, Duchess of Northumberland, generally called Lady Betty. In 1740 she married Sir Hugh Smithson, against the will of her grandfather, the Duke of Somerset, who disliked this marriage for the heiress of the Percys, but there was no power of depriving her of the property, and Smithson succeeded to the title in 1750; from this time they both figured prominently in society and politics, and the Duchess's entertainments, where the best musicians performed, were famous. (70) William Beckford (1709-1770). Alderman and Lord Mayor of London, and Member of Parliament for the City of London. The friend and supporter of Wilkes, he was an upholder of popular rights at a time when men of wealth were usually supporters of the King. (71) John George Montagu, fourth Earl of Sandwich (1718-1792); was a party politician whose term of office as First Lord of the Admiralty brought him into general opprobrium; in private life he was even more severely condemned. With the Earl of March, Sir Francis Dashwood, and others, he was associated with Wilkes in the infamous brotherhood of Medmenham, and later, when they made public the secrets of the club against Wilkes, popular feeling rose high against Sandwich, and he was characterised as Jemmy Twitcher, from a play then running; the theatre rose to the words "That Jemmy Twitcher should peach me I own surprised me." (72) Sir George, afterward Lord Macartney (1737-1800). An ambitious young Irishman; a tutor and friend of Charles James Fox, he had been assisted in his career by Lord Holland. In 1764 he had been appointed Envoy Extraordinary to Russia, and later held appointments as Secretary to the Lord-Lieutenant of Ireland, President of Madras, Governor of the Cape of Good Hope, and Ambassador to China. He married Lord Bute's second and favourite daughter, Lady Jane. (73) Marie de Vichy Chamroud, Marquise du Deffand (1697-1780). She married, in 1718, the Marquis du Deffand, from whom she soon separated, and lived the life of pleasure so common in the period. At the age of sixty-two she became totally blind. This misfortune but made her the more celebrated and sought after. In 1764 occurred the quarrel with Mlle. Lespinasse, which divided her salon and left her quite alone with her faithful secretary, Wiart. With the exception of her correspondence with the Duchesse de Choiseul, she bequeathed all her letters to Horace Walpole. She was seventy and Walpole fifty when they met and their famous attachment and correspondence began. (74) President Henault (1685-1770). He was President of the Parliament, a member of the Academy, and author of "L'abrege Chronologique de l'Histoire de France." His devotion to Mme. du Deffand lasted until his death, which preceded hers by ten years. (75) At White's.