The death tax more or less ended the UK aristocracy, apart from the absolute top echeolon of the very richest and the special case of the Royal family.
e.g. https://en.wikipedia.org/wiki/Andrew_Cavendish,_11th_Duke_of... "Devonshire inherited the estate but also an inheritance tax bill of £7 million (£303 million in 2023), nearly 80 per cent of the value of the estate. To meet this, the Duke had to sell off many art objects and antiques, including several Rembrandts, Van Dycks and Raffaello Santis, as well as thousands of acres of land"
e.g. https://en.wikipedia.org/wiki/Andrew_Cavendish,_11th_Duke_of... "Devonshire inherited the estate but also an inheritance tax bill of £7 million (£303 million in 2023), nearly 80 per cent of the value of the estate. To meet this, the Duke had to sell off many art objects and antiques, including several Rembrandts, Van Dycks and Raffaello Santis, as well as thousands of acres of land"