- Clare, of Assisi, Saint, 1194-12531
- Clusius, Carolus, 1526-16091
- Colophons1
- Correspondence2
- Cosimo I, Grand-Duke of Tuscany, 1519-15741
- Cyprus1
- Devotional literature1
- Didactic poetry, Latin1
- Digital images1
- Dodoens, Rembert, 1517-15851
- Dominicans1
- Early works8
- Eleonora, di Toledo, Duchess, consort of Cosimo I, Grand-Duke of Tuscany, 1522-15621
- Fifteenth century23
- Fourteenth century1
- Francesco I, Grand-Duke of Tuscany, 1541-15871
- Francis, of Assisi, Saint, 1182-12261
- Franciscans1
- Friendship1
- Gilt edges1