- King George IV (uncle)
- Queen Elizabeth (aunt)
- Queen Maud of Norway (grandaunt)
- Princess Nicholas of Greece & Denmark (Elena, maternal grandmother)
- Princess Olga of Yugoslavia (maternal aunt)
- The Princess Beatrice (paternal great-grandaunt)
- Alexander Augustus Frederick William Alfred George Cambridge, 1st Earl of Athlone (paternal granduncle)
- Count Karl Theodor of Toerring-Jettenbach (maternal uncle by marriage)
- Mister James Ogilvy (1964)
- Miss Flora Alexandra Ogilvy (1994)
- Master Alexander Charles Ogilvy (1996)
- Miss Marina Victoria Alexandra Ogilvy (1966)
- Miss Zenouska May Mowatt (1990)
- Mister Christian Alexander Mowatt (1993)
Since the late 1950s, she has carried out extensive royal engagements on behalf and supporting of her cousin, The Queen, carrying out roughly 120 engagements per a year, she is one of the most active members of the Royal Family.
She was only 15 years old when Princess Elizabeth became Queen Elizabeth, and was asked to undertake numerous royal duties. She has done numerous royal tours abroad. Her first tour abroad was to Australia in 1959. She returned to Australia on a private holiday in 1967, but also carried out engagements in Canberra and Melbourne while there. She represented her cousin in October 1960’s Nigeria independence from the UK, and opened the parilement there. Other overseas tours that the Princess has done were: Canada, Italy, Oman, Hungary, Norway, Thailan, Gibraltar & The Falkland Islands.
She served as Chancellor of Lancaster University from 1964-2005. She holds honorary degrees or fellowships from Lancaster University (Music, 2005), honorary fellowships with the Royal College of Physicians and Surgeons of Glasgow, of the Royal College of Anaesthetists, the Royal College of Obstetricians and Gynaecologists, and the Royal College of Physicians. She is also the President of Alexandra Rose Day, which was founded in honour of her great-grandmother, Alexandra of Denmark. She has recently given up the patronage of The Royal School, Hampstead, which was founded in 1855.
She is a member of the Civil list, and received receives £225,000 per year to cover the cost of official expenses; although like the other members of the Royal Family (except the Duke of Edinburgh) the Queen repays this amount to theTreasury. She lives at Thatched House Lodge in Richmond, London a Crown property purchased on a 150-year lease from the Crown Estate Commissioners by Sir Angus Ogilvy after their wedding in 1963. She also has use of a grace-and-favour apartment at St James's Palace in London.
She is the patron of the Blackie Foundation Trust, English National Opera, London Philharmonic Choir, the not-for-profit housing association Anchor, the charity Independent Age, St Christopher's Hospice in Sydenham, England, Core a National charity in London England dedicated to funding research into digestive diseases and also publishes information leaflets on the most common diseases of the gut and liver, the Nature in Art Trust and London Academy of Music and Dramatic Art (LAMDA), and President of WWF-UK. She has been the patron of the Royal Alexandra Hospital for Sick Children in Brighton since 1954. She is also the Royal Patron of Children and Families Across Borders, a charity dedicated to reuniting children who have been separated from their families. She is patron of Central School of Speech and Drama which received Royal title in 2012 as part of Her Majesty The Queen's Diamond Jubilee.