Princess Mary, Duchess of Sutherland GCVO DCMG (Mary Elizabeth Cynthia Alice; May 2, 1986), is the youngest child and only daughter of Charles, Prince of Wales and Diana, Princess of Wales.
She stands seventh in line to succeed her grandmother as monarch of the Commonwealth realms, preceded by her father, The Prince of Wales, her oldest brother Prince William, Duke of Cambridge, her nephew Prince George and her niece Princess Charlotte and her older brother Prince Henry of Wales.
On 17 May 2013 she married Lord Frederik Egerton, the then Marquess of Stafford (now 8th Duke of Sutherland after his father's death in October 2014), at Westminster Abbey.
The couple has two children:
Lord Ethan Egerton, 3rd Viscount Brackley (born on 1 August 2014) and Lady Lilibet Egerton (born 6 March 2016)