Londonderry (Barony)
A peerage of the Kingdom of Ireland.
Letters patent issued on Sat 3rd Jun 1719
To Thomas Pitt as Peerage of Ireland.
Holders
| Number | Surname | Forenames | Held from | Held to |
|---|---|---|---|---|
| 1st | Pitt | Thomas | Sat 3rd Jun 1719 | Mon 12th Sep 1729 |
Peerage extinct on Tue 8th Jan 1765 with the 3rd holder .