Background
Mancroft was the son of Arthur Michael Samuel, 1st Baron Mancroft, and Phoebe Fletcher.
Mancroft was the son of Arthur Michael Samuel, 1st Baron Mancroft, and Phoebe Fletcher.
In 1925 he assumed by deed poll the surname "Mancroft." He was educated at Winchester College, Christ Church, Oxford, obtaining a law degree, and Bonn University, where he studied music
In 1938 he became a barrister at the Inner Temple. After the war, he served in the Conservative administrations of Winston Churchill and Anthony Eden as a government whip from 1952 to 1954 and as Under-Secretary of State for the Home Department from 1954 to 1957. When Harold Macmillan became Prime Minister in January 1957, Mancroft was appointed Parliamentary Secretary to the Minister of Defence, Duncan Sandys, a post he held until June the same year, and was then Minister without Portfolio from 1957 to 1958.
He was also the author of the humorous book "A Chinaman in My Bath, and Other Pieces", published in 1974.
Lord Mancroft married Diana Elizabeth Lloyd, daughter of Lieutenant-Colonel Horace Lloyd, in 1951. Their daughter, the Honorary