Former Owner
- Luis Escobet1
- Madyan Qusuni1
- Maggs Bros Ltd1
- Manuel Fernández del Castillo1
- Mark Sittich von Hohenems Altemps1
- Markus Fugger1
- Muḥammad Bāqir Shīrāzī1
- Muḥammad Ḥusayn ibn Jaʻfar Qulī1
- Nicholas N. Martinovitch1
- Oliver R. Barrett1
- Otto Jahn1
- Paland, Irmengarde von1
- Peter Ludwig1
- Piero Ginori Conti1
- Pietro Giuseppe Ignati Mattei Cattochii1
- Qāsim al-Īrawānī1
- Reuschenberg, Margreta von1
- Robert Brodhead Honeyman1
- Robert de Mol1
- Roger North, 2nd Baron North1