Records of Prime Ministers of the United Kingdom the middle name until the 1980s.) The richest Prime Minister was Lord Derby, with a personal fortune of over £7 million (about £444 million in today's money). The poorest was William Pitt the Younger, who was £40,000 (now over £1 million) in debt by 1800. Three Prime Ministers ultimately died as a result of accidents: Records of Prime Ministers of the United Kingdom The article lists the records of Prime Ministers of Great Britain and of the United Kingdom since 1721. The Prime Minister with the longest single term was Sir Robert Walpole, lasting 20 years and 315 days from
1961 Commonwealth Prime Ministers' Conference the first female prime minister in the world. 1961 Commonwealth Prime Ministers' Conference The 1961 Commonwealth Prime Ministers' Conference was the eleventh Meeting of the Heads of Government of the Commonwealth of Nations. It was held in the United Kingdom in March 1961, and was hosted by that country's Prime Minister, Harold Macmillan. While Commonwealth conferences were normally held biennially, this conference was held after an interval of only a year as the May 1960 conference due to disagreement over South Africa and whether the country should be removed from the Commonwealth due to its policy of racial segregation with