"Her Majesty's Prime Minister, Lord Beaconsfield"

Benjamin Disraeli
Public DomainBenjamin Disraeli - Credit: Connormah
Benjamin Disraeli, 1st Earl of Beaconsfield, was Britain's Prime Minister from 20 February 1874-21 April 1880 and again from 27 February 1868-1 December 1868.  Unlike his rival, William Gladstone, he enjoyed a good relationship with Queen Victoria. 

Number10.gov.uk - Benjamin Disraeli biography