Author
- Shnorhali Sargis1
- Shāfiʻ ibn ʻaly1
- Simon de Lenis1
- Stephanus Hugoneti1
- Taddeo Alderotti1
- Taftazani1
- Thomas of Celano1
- Thomas of Chobham1
- Thomas of Ireland1
- Tomasz II Zaremba1
- Usuard1
- Valperga1
- Vincent of Beauvais1
- Walter Burley1
- Walter of Châtillon1
- Wang Xing1
- William Lee1
- William Normanton1
- William de Blois1
- William of Auxerre1