Former Owner
- Michael Kantakouzenos Şeytanoğlu1
- Michael Krupp1
- Michael M. Zagayski1
- Michael Wodhull1
- Michaeliskonvent1
- Michel Ferdinand d'Albert d'Ailly1
- Michel Guibé1
- Michel de Léon1
- Michele Amari1
- Michiel family1
- Middle Hill Rare Books & Manuscripts AB (Stockholm, Sweden)1
- Miguel de Mayora1
- Miha'el Hayyim ben Yosef bar Ya'akov1
- Millard Meiss1
- Milt Freudenheim1
- Milton S. Carothers1
- Minerva Kaiser1
- Minnis, Katherine1
- Mirmellus Arnandi1
- Miss Gostling1