Author
- Coelius Sedulius1
- Concini family1
- Confraternita della Santa Croce in Lucca1
- Confraternity of Saint Eulalia and Saint Gênes1
- Confraternity of St. Peter martyr (Palencia)1
- Conte Gabuzzi1
- Council of Basel1
- Cristoforo di Guidantonio de Piccolomini1
- Cyriacus Schnauß1
- Denis Faucher1
- Detti family1
- Diego Hurtado de Mendoza1
- Duchy of Milan1
- Duchy of Parma and Piacenza1
- Emperor Rudolf II1
- Fabrizio de' Medici1
- Fazio de Piccolomini1
- Federation of the Seven Communities1
- Federico Arrigucci1
- Ferdinand I, Holy Roman Emperor1