A peerage of the Kingdom of Great Britain.
Letters patent issued on Mon 5th Jul 1790
To James Duff as Hereditary peerage (already peer of Ireland).
|Number||Surname||Forenames||Held from||Held to|
|1st||Duff||James||Mon 5th Jul 1790||Tue 24th Jan 1809|
Peerage extinct on Tue 24th Jan 1809 with the 1st holder .