De L'Isle (Viscountcy)
De L'Isle, of Penshurst in the County of Kent (Viscountcy)
A peerage of the United Kingdom.
Letters patent issued on Thu 12th Jan 1956
To William Philip Sidney as Promotion.
|Number||Surname||Forenames||Held from||Held to|
|1st||Sidney||William Philip||Thu 12th Jan 1956||Fri 5th Apr 1991|
|2nd||Sidney||Philip John Algernon||Fri 5th Apr 1991||-|