- Clasps1
- Classical dictionaries1
- Clement VIII, Pope, 1536-16051
- Coen, Caim, active 17th century1
- Confirmation (Jewish rite)1
- Congregazione di San Giorgio in Alga (Venice, Italy)1
- Congregação di San João Evangelista (Portugal)1
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- Cosimo I, Grand-Duke of Tuscany, 1519-15741
- Croatia--Dalmatia1
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- Di Leone, Francesco1
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- Edward VI, King of England, 1537-15531