Edward Villiers, 5th Earl of Clarendon a seat he retained until the following year, when he succeeded his father in the earldom and took his seat in the House of Lords. In 1895 he was appointed a Lord-in-waiting in the Unionist administration of Lord Salisbury, a position he held until 1900, when he was promoted to Lord Chamberlain of the Household and admitted to the Privy Council. He retained this office also when Arthur Balfour became Prime Minister in 1902. The government fell in December 1905 and Clarendon was never to return to office. Apart from his political career Lord Clarendon was also Lord-Lieutenant of Hertfordshire
First Lord of the Treasury residence is also used by other senior members of government. Much of this list overlaps with the list of Prime Ministers of the United Kingdom, but there are some notable differences, principally concerning the Marquess of Salisbury, who was Prime Minister but not First Lord in 1885–86, 1887–92 and 1895–1902. Those First Lords who were simultaneously Prime Minister are indicated in bold; those First Lords who were considered Prime Minister only during part of their term are indicated in bold italic. Thereafter the posts of First Lord of the Treasury and Prime Minister have continually been held by the same