Princess Alice of Battenberg was the mother of Prince Philip, Duke of Edinburgh, mother-in-law of Queen Elizabeth II, and paternal grandmother of King Charles III. After marrying Prince Andrew of Greece and Denmark in 1903, she adopted the style of her husband, becoming Princess Andrew of Greece and Denmark.

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.