Author
- Torelli family1
- Uffizio della mercanzia of Florence1
- Università de' mercanti (Siena)1
- Urban V1
- Usuard1
- Uthman bin Ali Zayla'i1
- Vegetius1
- Vigliano d'Asti1
- Walter Burley1
- Werner Rolevinck1
- William Langland1
- William of Montlauzun1
- William of St-Thierry1
- Yahya ibn Imad bin Yahya al-Munajjim al-Kashi1
- Yazıcı Salahuddin1
- Yaʻqūb ibn ʻAlī Burūsawī1
- Yūsuf ibn Abī Bakr Sakkākī1
- Yūsuf ibn Maḥmūd Ẓahrānī1
- Zechariah ben Solomon-Rofe1
- Zedekiah ben Abraham Anaw1