Records of Prime Ministers of the United Kingdom transitions between reigns, eight Prime Ministers each served under two sovereigns: George III had 14 Prime Ministers serving during his 59-year reign (reigned 1760–1820), beginning with the Duke of Newcastle. The last incumbent, Lord Liverpool, was the only one appointed by his son (the Prince Regent) during the father's final incapacity to rule. In downward numerical order, numbers of Prime Ministers in office during other reigns are: Only six Prime Ministers came to serve office under sovereigns in whose own reigns they were born. The present Prime Minister, Theresa May, is the third Prime Minister to have been born in
Historical rankings of Prime Ministers of Australia Historical rankings of Prime Ministers of Australia Several surveys of academics and the general public have been conducted to evaluate and rank the performance of the Prime Ministers of Australia. According to Paul Strangio of Monash University, there has been little academic interest in ranking Australian prime ministers, unlike the numerous surveys conducted on American presidents and British prime ministers. The few surveys that have been conducted have been quite unscientific, with respondents chosen at random and no efforts made to measure personal biases. Strangio notes that "the dominant methodology for studying the nation's leaders has been individual-centered biographies [...]