The Hispanic Society of America holds approximately 200,000 manuscripts, dating from the tenth to the twentieth century, which encompass all parts of the world where the Spanish and Portuguese Empires held sway. The holdings include medieval charters, holograph royal letters, illuminated Bibles, as well as important literary, historical and scientific manuscripts. Material related to the indigenous peoples of the Americas also constitutes a major component of the collections, with many documents written in Nahuatl, Quechua, Zapotec, Otomí, to name but a few of the languages represented. The Hispanic Society has published catalogues of its Spanish medieval, and Golden Age poetry and drama collections, but these manuscripts account for approximately 10% only of the Society’s entire holdings. The aim of the project would be to build a short-title database of these holdings which could be made available on-line. Each entry would include the basic information: author, title, date of production, place of production, language, and whether the manuscript contained illuminations or illustrations.