Premiership of the Marquess of Thomond
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| Premiership of the Marquess of Thomond 19 November 2025 – present | |
| Monarch | George VII |
|---|---|
| Cabinet | Second Strathmore Ministry Thomond Ministry |
| Party | Unionist Party |
| Seat | 10 Downing Street |
 Coat of Arms of HM Government under George VII | |
August Carew, The Marquess of Thomond's third tenure as Prime Minister of Great Britain began on 19 November 2025, following the sudden resignation of his predecessor, Josephine Somerset Carew, The Duchess of Bedford, and his acclamation as Prime Minister by William, Prince-Regent. During this time, he also served as First Lord of the Treasury, Leader of the Unionist Party, and for a time as Secretary of State for Foreign Affairs. The first time he had returned to Number Ten in over a year, he was the ninth Prime Minister of George VII. He was the seventh Prime Minister of George VII to win an election. He is one of six (at the time of writing) individuals to have served in all four Great Offices of State. Having secured a mandate at the December 2025 General Election (II), he became the first Prime Minister to serve two consecutive terms since Thomas Carew, more than 18 months prior, and the first since Victor Somerset in 2022 to have been initially appointed as PM, and then win an election soon after.
Until the 31 December 2025, Carew was styled as the 2nd Earl of Strathmore, and as such, his Premiership was styled as the 2nd Strathmore Premiership. Upon his elevation to Marquess, the names changed. He remains the third individual to recieve an elevation in the peerage during a Premiership, behind Thomas Carew and William Somerset.