Anthony Eden (1955–57)
Harold Macmillan (1957–63)
Alec Douglas-Home (1963–64)
Harold Wilson (1964–70)
Edward Heath (1970–74)
Harold Wilson (1974–76)
James Callaghan (1976–79)
Margaret Thatcher (1979–90)
John Major (1990–97)
Tony Blair (1997–07)
Gordon Brown (2007–10)
David Cameron (2010–16)
Theresa May (2016–19)
Boris Johnson (2019–22)
Liz Truss (2022 (two days ago) - current)
Quite the reign! Can't help but feel a bit sad really.
I suspect that you don't realize how bizarre this phrasing is for the vast majority of the world.
There are many countries in the world who run different system of governments, and many as doing it quite successfully.
That phrase implies that she had PMs subservient to her. That's not how the UK monarchy is generally explained, at least not outside of the UK.
Under Charles III’s reign, it will be His Majesty’s government; how actively he takes an interest in its affairs will be on him, but at a minimum laws will not take effect without his assent and his permission will be asked for to form future governments.
That’s the system of the United Kingdom. It never stopped being a Kingdom, people just chose to view the late Queen as ceremonial because it was a convenient way to square the Throne with democratic ideals, but it really isn’t all that ceremonial. The reason the customs held fast is because Queen Elizabeth II worked to make the system work. A different sort of Queen may have sparked a constitutional crisis or two by now and there’s no guarantee she would have necessarily lost to the Commons.