- Cecil, Mary Amelia, Marchioness of Salisbury, 1750-18351
- Cervetto, Giacobbe, 1682-1783.1
- Chaloner, Thomas, 1595-1661.1
- Charles V, Holy Roman Emperor, 1500-1558.1
- Charlotte, Queen, consort of George III, King of Great Britain, 1744-18181
- Chesterfield, Philip Stanhope, Earl of, 1633-1713.1
- Chesterfield, Philip Stanhope, Earl of, 1755-1815.1
- Choiseul Stainville, Louise Honorine Crozat, duchesse de, 1734-1801.1
- Church of England1
- Churchill, Mary Walpole, Lady, 1725?-1801,1
- Cicero, Marcus Tullius.1
- Clarke, Alured, 1696-1742.1
- Clayton family.1
- Clayton, William, Sir, 1762-1834.1
- Coilsfield House (Ayrshire, Scotland)1
- Coke, Mary Stanhope, Lady, 1664-1703.1
- Coke, Mary, Lady, 1726-1811.1
- College of Arms (Great Britain)1
- Cornazzano, Antonio, 1429-1484.1
- Craven, Elizabeth, 1750-18281
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