Merthyr, of Senghenydd in the County of Glamorgan (Barony)
A peerage of the United Kingdom.
Letters patent issued on Sat 24th Jun 1911
To William Thomas Lewis as Hereditary peerage.
|Number||Surname||Forenames||Held from||Held to|
|1st||Lewis||William Thomas||Sat 24th Jun 1911||Thu 27th Aug 1914|
|4th||Lewis||Trevor Oswin||Tue 5th Apr 1977||Tue 26th Apr 1977|
|5th||Lewis||David Trevor||Wed 5th Aug 2015||-|