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
Records of Prime Ministers of the United Kingdom only Prime Minister ever to do so. Others who died within the same year they were Prime Minister were the Duke of Portland who died in 1809, 26 days after he left office and Neville Chamberlain, who died in 1940, six months (less a day) after he left office, of a cancer that was undiagnosed at the time of his resignation. Nine Prime Ministers have died while their immediate successor was in office: All of the above-listed Prime Ministers were older than their immediate successors. The Duke of Portland and Lord Aberdeen are the only ones among this list who