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
Chatham ministry of the remaining were comfortable with. In the fall of 1768, the Bedfords persuaded Grafton that it would be necessary to remove Shelburne from the ministry. This threatened dismissal roused Chatham, who in October 1768 resigned his post alongside Shelburne. Although Chatham's close friend Camden remained in the government, it was clear that the ministry was now dominated by the Bedfords, and the Duke of Grafton formally took over as Prime Minister – leading the Grafton ministry for slightly over a year until January 1770. Chatham ministry The Chatham ministry was a British government led by William Pitt, 1st Earl