Princess Marina, Duchess of Kent was a Greek princess by birth and a British princess by marriage. She was a daughter of Prince Nicholas of Greece and Denmark and Grand Duchess Elena Vladimirovna of Russia, and a granddaughter of King George I and Queen Olga of Greece. Princess Marina married Prince George, Duke of Kent, fourth son of King George V and Queen Mary, in 1934. They had three children: Prince Edward, Princess Alexandra, and Prince Michael.

The currently deposed Greek royal family was the ruling family of the Kingdom of Greece from 1863 to 1924 and again from 1935 to 1973. The family is a branch of the Danish royal family, itself a branch of the House of Glücksburg. Upon its accession to power, It replaced the House of Wittelsbach that previously ruled Greece from 1832 to 1862. The first monarch was George I of Greece, the second son of King Christian IX of Denmark. The current head of the family is Pavlos, who assumed the role upon the death of his father, former King Constantine II on 10 January 2023.