The Lady Sarah Frances Elizabeth Chatto, née Armstrong-Jones (born 1 May 1964), is the only daughter of the 1st Earl of Snowdon and Princess Margaret, Countess of Snowdon, the second daughter of King George VI and Queen Elizabeth. She is 18th in line of succession to the thrones of each of the Commonwealth realms; at the time of her birth, she was seventh in line. She is the only niece of Queen Elizabeth II and the youngest grandchild of King George VI and Queen Elizabeth.
| First Name | Sarah |
| Middle Name | Frances Elizabeth |
| Last Name | Armstrong-Jones |
| Maiden Name | Armstrong-Jones |
| Full Name at Birth | Sarah Frances Elizabeth Armstrong-Jones |
| Other Names | Lady Sarah Chatto |
| Age | 49 |
| Date of Birth | May 1, 1964 |
| Birthplace | Clarence House, St. James, London, England |
| Build | Slim |
| Eye Color | Brown - Light |
| Hair Color | Brown - Light |
| Star Sign | Taurus |
| Ethnicity | White |
| Nationality | British |
| University | Camberwell School of ArtMiddlesex Polytechnic (now Middlesex University) |
| Occupation | Artist |
| Occupation Category | Royalty |
| Claim to Fame | Being Princess Margaret`s Daughter |
| Father | Antony Armstrong-Jones (father) |
| Mother | Princess Margaret (mother) (royal) |
| Brother(s) | Viscount Linley (brother) |
| Other Family Members | Daniel Chatto (husband)Samuel Chatto (son)Arthur Chatto (son)Queen Elizabeth (auntie) |