The Duchess of Northumberland | |
|---|---|
 The Duchess officiating at a Battle of Britain parade in Alnwick, September 2018 | |
| Lord Lieutenant of Northumberland | |
| In office 12 May 2009 – 1 May 2024 | |
| Monarchs | Elizabeth II Charles III |
| Preceded by | Sir John Riddell |
| Succeeded by | Dr Caroline Pryer |
| Personal details | |
| Born | Isobel Jane Miller Richard 11 May 1958 Edinburgh, Scotland |
| Nationality | British |
| Spouse | |
| Children | Lady Katie Percy George Percy, Earl Percy Lady Melissa Percy Lord Max Percy |
| Parent(s) | John Richard Angela, Lady Buchan-Hepburn |
| Net worth |  £315 million[1][2] |
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Isobel Jane Miller Percy, Duchess of Northumberland, DCVO (née Richard; born 11 May 1958), is a British aristocrat and businesswoman. She served as Lord Lieutenant of Northumberland from 2009 to 2024, and is best known for redeveloping the Alnwick Garden at Alnwick Castle. She was the first woman to serve as Lord Lieutenant of Northumberland. Her husband, Ralph, is the 12th Duke of Northumberland.