Chatham House Chatham House The Royal Institute of International Affairs, commonly known as Chatham House, is a not-for-profit and non-governmental organisation based in London whose mission is to analyse and promote the understanding of major international issues and current affairs. It is the originator of the Chatham House Rule and takes its name from the building where it is based, a Grade I listed 18th-century house in St James's Square, designed in part by Henry Flitcroft and occupied by three British prime ministers, including William Pitt, 1st Earl of Chatham. In the University of Pennsylvania’s rankings (announced in January 2017) for their
William Pitt, 1st Earl of Chatham "destroying all party distinctions". Pitt made appointments based not on connections but on merit, such as Charles Townshend to the Exchequer and Shelburne as Secretary of State, to order American affairs. Pitt chose for himself the office of Lord Privy Seal, which required his elevation to the House of Lords, and on 4 August he became Earl of Chatham in the county of Kent and Viscount Pitt of Burton Pinsent in the county of Somerset. Pitt's decision to accept a peerage was likely influenced by his declining health and desire for a less demanding role, but the "great commoner" lost