Former Owner
- Melk Abbey1
- Meschatin La Faye family1
- Mikhail Golitsyn1
- Mirmellus Arnandi1
- Mrs. F. W. Bartlett1
- Muḥammad Nāṣir al-Dawlah1
- Muḥammad al-Raʼīs1
- Muḥammad ʻAbd al-Ḥayy ibn ʻAbd al-Kabīr al-Kinānī al-Ḥasanī1
- Muḥammad Ṣābir1
- Muṣṭafá Shāh ʻAlāʼī1
- Otto Ege1
- Paul Riant1
- Paul Viollet1
- Philippe Desportes1
- Pius XI1
- Renzo Rizzi libri antichi1
- Richard Graves1
- Richard Heber1
- Richard Thomas Bateman1
- Robert Brodhead Honeyman1