Shuttleworth was the second and posthumous son of Capt. Lawrence Ughtred Kay-Shuttleworth, the eldest son of
1st Baron Shuttleworth, and his wife, Selina Adine Bridgeman. His father was killed in action at
Vimy Ridge in March 1917 in the First World War; his father's younger brother, Capt. Edward Kay-Shuttleworth, was killed just four months later, in July 1917. In 1920, his mother remarried to Canadian Brig.-Gen. William Birchall Macaulay King. He was educated at
Eton College and
Balliol College, Oxford. In 1940, his elder brother, Flying Officer
Richard Kay-Shuttleworth, 2nd Baron Shuttleworth, was killed in action while serving with the Royal Air Force, just eight months after he had inherited the barony from their grandfather. He went missing in 1940 while flying over the English Channel; he was declared dead in March 1941. ==References==