- National Library of Scotland Manuscript Collections
- National Library of Wales
- Bibliothèque nationale de France
- University of London Library
- Archives in London
- Coutauld Institute Research Centre for Illuminated Manuscripts
- Bodleian Library Western Manuscripts
- University of Cambridge Department of Manuscripts and University Archives
- John Rylands University Library of Manchester Special Collections and Exhibitions
- Library of Congress Manuscripts Reading Room
- The New York Public Library Humanities and Social Sciences Research Library
- Harvard College Houghton Library
- Yale University Beinecke Rare Book and Manuscript Library
- The Huntington Library
- Vatican Library
- National Art Library website
- Society of Archivists
- The British Museum
- Museums Virtual Library
