Born in 08 October 1987 to Anthropology Oxford professor Dr. Benjamin Kingston and philanthropist & aristocrat Lady Julie Kingston (née Howard) in Oxford, England. She's is related to the Duke and Duchess of Wiltshire through her mother.
She started her schooling at the Dragon School in Oxford, where she studied until the age of eleven, moving to St. Edward's School in Oxford and remaining there until the termination of her studies at the age of eighteen.
In 2005, she began her studies at the University of Oxford, at Queen's College where she read Anthropology. She works at the British Museum as researcher.
In 25 October 2014 she married long-term boyfriend, Richard Collins, who's also a close friend of the McClaire siblings, at St. Pierre's Church in Chepstow, Wales. The couple currently lives in London.
In 7 August 2015, Kingston gave birth to the couple's first child at King Edward VII's hospital; a baby girl named Rose Arabella Collins. In 29 January 2016, the baby was christened at St. Mary Abbots Church, in Kensington. Prince Harry and Lady Eleanor, along with Collins' siblings, stood as her godparents.