A peerage of the Kingdom of Great Britain.
Letters patent issued on Mon 6th Dec 1784
To William Petty as Hereditary peerage subsidiary to another created by the same letters patent.
|Number||Surname||Forenames||Held from||Held to|
|1st||Petty||William||Mon 6th Dec 1784||Tue 7th May 1805|
|3rd||Petty-Fitzmaurice||Henry||Wed 15th Nov 1809||Sat 31st Jan 1863|
|4th||Petty-Fitzmaurice||Henry Thomas||Sat 31st Jan 1863||Thu 5th Jul 1866|
|8th||Mercer Nairne Petty-Fitzmaurice||George John Charles||Sun 20th Aug 1944||Wed 25th Aug 1999|
|9th||Mercer Nairne Petty-Fitzmaurice||Charles Maurice||Wed 25th Aug 1999||-|