Sir William Arthur Mount, 1st Baronet is the great-grandfather of which former British PM?
Sir William Mount, 1st Baronet Sir William Arthur Mount, 1st Baronet CBE (Hartley, Hampshire, 3 August 1866 – 8 December 1930) was a British Conservative Party politician and Member of Parliament for the Newbury constituency. He is the great-grandfather of Conservative politician David Cameron, who was Prime Minister of the United Kingdom from 2010 to 2016.
Patrick Thompson Hugh Patrick Thompson (born 21 October 1935), known as Patrick Thompson, is a British Conservative Party politician.