Barons | Titles by Rank
- Barons of Terranuova
- Barons of Terrateig
- Barons of Tessin
- Barons of Teuffenbach
- Barons of Thannhausen
- Barons of Thavonat
- Barons of the Franch Empire
- Barons of Thianges
- Barons of Thielmann
- Barons of Thienen-Adlerflycht
- Barons of Thomsen
- Barons of Thoury
- Barons of Thunderfeldt
- Barons of Thüngen
- Barons of Thürheim
- Barons of Thurn
- Barons of Tibagi
- Barons of Tieté
- Barons of Tigry
- Barons of Timbauba
- Barons of Timboí
- Barons of Tingry
- Barons of Tinguá
- Barons of Tinguá-I
- Barons of Tinti
- Barons of Tojal
- Barons of Tollet
- Barons of Tondela
- Barons of Torbolton
- Barons of Torcy
- Barons of Toropi
- Barons of Torre
- Barons of Torre de Garcia de Ávila
- Barons of Torre de Moncorvo
- Barons of Torre de Pero Palha
- Barons of Torre de Vila Cova da Lixa
- Barons of Torrecuso
- Barons of Torres Homem
- Barons of Torres-Torres
- Barons of Törring-Jettenbach
- Barons of Tott
- Barons of Toustain de Limésy
- Barons of Trabia
- Barons of Trach
- Barons of Tracunhaem
- Barons of Traipu
- Barons of Tramandaí
- Barons of Traripé
- Barons of Trauttenberg
- Barons of Trauttmansdorff