Descendants of King Louis XVIII of France are being asked to come forward as BBC Radio 4 air a show which features his time at Hartwell House.
King Louis XVIII was in exile at the country house and Grade I listed building on the edge of Aylesbury in the 19th Century for five years before returning to the throne in France.
He passed through Aylesbury with a great procession in 1814 before returning to France but descendants from members of his court are likely to live in the Vale today.
The radio programme, which airs at 3pm on January 21, includes an interview with Carole Fryer of Stone Local History Group as she explains that a number of King Louis’ court are buried at Hartwell.
She said: “It would be great to hear from anyone who could show us something that their great, great, great grandmother had.
“It’s something which is quite an important historical event for Aylesbury.
“Bourbon Street in Aylesbury was renamed in memory of the royal house of Bourbon which King Louis was from.”
The Making History radio show, recorded on January 11, also features historian Neil Rees, who lives in Aylesbury.
Speaking from Bourbon Street, he describes a new history project to research the court of Louis XVIII and makes an appeal for descendants as part of collecting information for a new book.
Historian Kate Williams is also interviewed at Hartwell House to tell the story of the French King.
Are you descended from a member of Louis XVIII’s court?
Do you have any items connected to that time? Contact Neil Rees on 01494776457 with any information.