Jane Percy, Duchess of Northumberland

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
MonarchsElizabeth II
Charles III
Preceded bySir John Riddell
Succeeded byDr Caroline Pryer
Personal details
Born
Isobel Jane Miller Richard

(1958-05-11) 11 May 1958
Edinburgh, Scotland
NationalityBritish
Spouse
ChildrenLady Katie Percy
George Percy, Earl Percy
Lady Melissa Percy
Lord Max Percy
Parent(s)John Richard
Angela, Lady Buchan-Hepburn
Net worth£315 million

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.