Verified answer

Fredrick North and George Grenville were Prime Ministers, not generals.

George Grenville (14 October 1712 – 13 November 1770) was a British Whig statesman who served in government for the relatively short period of seven years, reaching the position of Prime Minister of Great Britain. He was one of the few prime ministers (others include William Pitt the Younger, Sir Winston Churchill and William Gladstone) who never acceded to the peerage.

Lord Frederick Windsor (Frederick Michael George David Louis Windsor; born 6 April 1979), popularly known as Lord Freddie, is an English financial analyst who is the only son of Prince and Princess Michael of Kent (née Baroness Marie-Christine von Reibnitz). Lord Frederick was born in Paddington, London, United Kingdom and has a sister, Lady Gabriella Windsor, born in 1981. He is now 31st in the line of succession to the British Throne.

False

False - both were British, but neither of them were generals.

I would say that its not true