Thomond, of Taplow Court in the County of Buckingham (Barony)
A peerage of the United Kingdom.
Letters patent issued on Fri 2nd Oct 1801
To Murrough O'Brien as Hereditary peerage (already peer of Ireland).
|Fri 2nd Oct 1801
|Wed 10th Feb 1808
Peerage extinct on Wed 10th Feb 1808 with the 1st holder .