The arms are those of Temple-Nugent-Brydges-Chandos-Grenville impaling those of Campbell, as borne by Richard Plantagenet, 2nd Duke of Buckingham and Chandos, born in 1797. His father was the only Duke created by George IV, "he was said to have conferred that dignity on him as a mark of his personal friendship. As a matter of fact it was part of a bargain by which Lord Liverpool secured the support of the Grenville band for the Tory party, on which occasion Lord Holland remarked that 'all articles were now to be had at low prices except Grenville's'."

Before his succession, the 2nd Duke sat as M.P. for Buckinghamshire 1818-1839, being considered the leader of the landed interest in the House of Commons. He was Lord Privy Seal 1841-1842 and made of Knight of the Garter in 1842. However, "by a system of accumulating estates purchased with borrowed money, and by excessive expenditure, he, within eight years of his succession, became a ruined man." The Times wrote censoriously of the Duke "as a man of the highest rank, and of a property not unequal to his rank, who has flung away all by extravagance and folly, and reduced his honor to the tinsel of a pauper and the baubles of a fool." The celebrated art collections of Stowe, the family seat in Buckinghamshire, were sold by his creditors by Christie's in a forty days' sale, August to October, 1848, realizing a total of 75,562. The lock of hair of Mary Tudor realized but 7 10s.