Letters patent issued on Mon 29th Dec 1800

To Murrough O'Brien

A peerage of the Kingdom of Ireland , during the reign of George III

Previously known as Earl of Inchiquin in the Peerage of the Kingdom of Ireland.

Ordinality on date: 1

Person prefix:

Person suffix:

Previous of title: true


  1. Marquess of Thomond


List, p. 52h; LP printed in Claims to Vote, iii, 117-19