Lords Commissioners of the Treasury concomitant, so much so that the Prime Minister's official residence, 10 Downing Street, is in fact the official residence of the First Lord of the Treasury, which title is named on the letter box. Salisbury, as a marquess of vast independent wealth, had no use of an official residence, instead living in his grander town house at 20 Arlington Street in St James's, and could instead bestow it as a perquisite to other ministers, along with the First Lordship itself. Other positions have been linked to the Prime Ministership as well. Continuously since 1968, when the position was created by
George Ponsonby (Junior Lord of the Treasury) George Ponsonby (Junior Lord of the Treasury) George Ponsonby (1773 – 5 June 1863), styled The Honourable from 1806, was an Irish politician, who served as a Junior Lord of the Treasury in the governments under Earl Grey and Lord Melbourne from 1832 to 1834. He was the fourth son of William Brabazon Ponsonby and Louisa daughter of Richard Molesworth, 3rd Viscount Molesworth. Ponsonby represented Lismore in the Irish House of Commons between 1796 and 1798. He was then elected as a Member of Parliament at a by-election for Kilkenny County in 1806 on his father, previously the sitting member,