On 6 May 1820, Vaughan succeeded his half-brother in the earldom, but as this was an Irish peerage it did not entitle him to a seat in the House of Lords.
May 1820, Vaughan succeeded his half-brother in the earldom, but as this was an Irish peerage. This was on 6. It did not entitle him to a seat in the House of Lords an Irish peerage.