Former Owner
- Sam Fogg Rare Books & Manuscripts1
- San Pietro Apostolo1
- Santi Giovanni e Paolo1
- Schøyen Collection1
- Silvester Cattaneus1
- Sion Segre Amar1
- Sir John Chetwode, 4th Baronet1
- Sir William Henry Ingilby, 4th Bt.1
- Stella, Giovanni Pietro, 16th century1
- Stiftsbibliothek Kremsmünster1
- Sydney Cockerell1
- Thomas Appleby1
- Thomas G. Bergin1
- Thomas Thomson1
- Thomon Simon Jones1
- Tours Cathedral1
- Walter Ashburner1
- William Babthorpe1
- William Betham1
- William Clarke1