Colenda Digital Repository
- Bonfils, Immanuel ben Jacob, active 14th century1
- Borelli, Giovanni Alfonso, 1608-16791
- Cafaro, Girolamo1
- Calcidius1
- Caranza, Emmanuel, 1691-17341
- Cassini, Giovanni Domenico, 1625-17121
- Charles Rainsford Collection of Alchemical and Occult Manuscripts (University of Pennsylvania)1
- Collegium Urbanum de Propaganda Fide1
- Cotrugli, Benedetto, -14681
- Durandus, of Saint-Pourçain, Bishop of Meaux, approximately 1275-13341
- Ewing, John, 1732-18021
- Fabricius, Paulus1
- Froelich, Guilhelmus1
- Galilei, Galileo, 1564-16421
- Gayer, Constantinus1
- Giangaleazzo Visconti, Duke of Milan, 1351-14021
- Gio, Georgius1
- Grigor, Skewṛatsʻi, active 12th century1
- Hakob, Ghrimetsʻi, active 14th century1
- Helmlin, Bernardus1