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Author
- Catholic Church7
- Johannes de Sacrobosco2
- Petrus Riga2
- Thomas Aquinas2
- Abu Bakr al-Razi1
- Albertus Magnus1
- Alexander of Villedieu1
- Aristotle1
- Arnulf of Bohéries1
- Avicenna1
- Bartholomew Anglicus1
- Biccherna1
- Città di Castello1
- Galuccio Trevisono Volpe1
- General council of Guelfs1
- Giovanni da Bologna1
- Haimo of Auxerre1
- Heinrich IV. von Württemberg1
- Ildibrandinus1
- Innocent IV1