- De bello Gallico (Caesar, Julius)1
- De la Peña family1
- De pulsibus libellus ad tirones (Galen)1
- De' Medici, Luigi, principe di Ottaviano, 1759-18301
- Dead--Religious aspects--Islam1
- Death--Religious aspects--Judaism1
- Debtor and creditor1
- Debts, External1
- Decedents' estates1
- Decorated edges1
- Decorated paper bindings1
- Del Carretto family1
- Del Torto, Andrea1
- Delci, Aldobrando1
- Delci, Niccolò1
- Della Casa, Filippo1
- Della Rovere, Giorgio1
- Dentelle bindings1
- Descripción de las Indias Occidentales (Herrera y Tordesillas, Antonio de)1
- Despotism1