A peerage of the Kingdom of Great Britain.
Letters patent issued on Fri 10th Apr 1761
To William Irby as Hereditary peerage.
|Number||Surname||Forenames||Held from||Held to|
|1st||Irby||William||Fri 10th Apr 1761||Thu 30th Mar 1775|
|10th||Irby||Timothy George Frank||Fri 17th Feb 1978||Sat 3rd Feb 2007|
|11th||Irby||George William Eustace Boteler||Sat 3rd Feb 2007||-|