| Tracton (Barony) |
James Dennis - Thu 4th Jan 1781
|
15 June 1782 |
- |
| Tracy (Barony) |
John Tracy - Mon 12th Jan 1643
|
29 April 1797 |
- |
| Trafford (Barony) |
Joseph Anthony Porteous Trafford - Fri 3rd Apr 1987
|
16 September 1989 |
- |
| Tranmire (Barony) |
Robert Hugh Turton - Thu 9th May 1974
|
17 January 1994 |
- |
| Tredegar (Barony) |
Charles Morgan Robinson Morgan - Sat 16th Apr 1859
|
17 November 1962 |
- |
| Trees (Barony) |
Alexander John Trees - Tue 3rd Jul 2012
|
- |
- |
| Trefgarne (Barony) |
George Morgan Garro-Jones - Tue 21st Jan 1947
|
- |
- |
| Tregoz (Barony) |
Oliver St John - Thu 21st May 1626
|
30 December 1630 |
- |
| Trench (Barony) |
Richard Le Poer Trench - Fri 4th Aug 1815
|
- |
- |
| Trenchard (Barony) |
Hugh Montague Trenchard - Thu 23rd Jan 1930
|
- |
- |
| Trend (Barony) |
Burke St. John Trend - Thu 7th Mar 1974
|
21 July 1987 |
- |
| Trent (Barony) |
Jesse Boot - Mon 18th Mar 1929
|
8 March 1956 |
- |
| Treowen (Barony) |
Ivor John Caradoc Herbert - Wed 20th Jun 1917
|
18 October 1933 |
- |
| Trevelyan (Barony) |
Humphrey Trevelyan - Mon 12th Feb 1968
|
8 February 1985 |
- |
| Trevethin (Barony) |
Alfred Tristram Lawrence - Wed 24th Aug 1921
|
- |
- |
| Trevor (Barony) |
Marcus Trevor - Mon 28th Aug 1662
|
8 November 1706 |
- |
| Trevor (Barony) |
Thomas Trevor - Fri 1st Jan 1712
|
9 September 1824 |
- |
| Trevor (Barony) |
Arthur Edwin Hill-Trevor - Wed 5th May 1880
|
- |
- |
| Triesman (Barony) |
David Maxim Triesman - Fri 9th Jan 2004
|
- |
- |
| Trim (Barony) |
Thomas Wharton - Fri 12th Apr 1715
|
20 May 1731 |
- |