Robert Gascoyne-Cecil, 3rd Marquess of Salisbury his nephew, Arthur Balfour. King Edward VII conferred upon him the Grand Cross of the Royal Victorian Order (GCVO), with the order star set in brilliants, during his resignation audience. Salisbury, due to breathing difficulties caused by his great weight, took to sleeping in a chair at Hatfield House. His death in August 1903 followed a fall from that chair, when by then he had a weak heart condition and blood poisoning caused by an ulcerated leg. Salisbury was buried at St Etheldreda's Church, Hatfield, where his predecessor as prime minister, Lord Melbourne, is also interred. When Salisbury died his
Records of Prime Ministers of the United Kingdom to at least one other Prime Minister by blood or marriage. Two sets of father and son have successively held the office: The only brothers to hold the office were Henry Pelham, who was succeeded on his death in 1754 by the Duke of Newcastle. Pitt the Younger and Lord Grenville (who directly succeeded the latter in office) were the only set of full cousins to hold the office, their fathers being brothers-in-law. There have been three blood uncle-nephew sets of Prime Ministers: Lord Wilmington was two-greats uncle of Spencer Perceval, whose mother, Catherine ( Compton), Baroness Arden, was a