Former Owner
- Thomas Sharpe Powell1
- Thomas Sowthen1
- Thomas Stonor, 3rd Baron Camoys1
- Thomas Thomson1
- Thomas Thorpe6
- Thomas Tresham II1
- Thomas Wall1
- Thomas Watson1
- Thomas Windus1
- Thomas de Grey, 2nd Earl de Grey2
- Thomon Simon Jones1
- Thorp1
- Tobin Anderson1
- Tollemache family1
- Tracy Palmer1
- Ulrich Fugger1
- Ulrico Hoepli1
- Vassar College1
- Vatican Library1
- Veit Engelhard Holtzschuher1