- Cook family1
- Cook, John, -approximately 13681
- Cook, Margaret Hoskin, -approximately 13681
- Copper mines and mining1
- Correspondence10
- Cosimo I, Grand-Duke of Tuscany, 1519-15741
- Cosmography4
- Costa, Gaspar, active 1533-15341
- Court decisions and opinions1
- Courts2
- Courts and courtiers1
- Creation (Islam)1
- Crespo, Johannes1
- Crimean War (1853-1856)1
- Criminal courts1
- Criminal procedure1
- Criticism and interpretation2
- Criticism, Textual10
- Criticism, interpretation, etc.10
- Cruciger, Kaspar, 1504-15481