Origins The library was established in by the Augustinian bishop and papal sacristan
Angelo Rocca, and belonged to the Augustinian monastery. Its founder, in whose honor the library is still named the Biblioteca Angelica, was an erudite scholar and keen collector of rare editions. His library was one of the most complete private collections in Rome, possessing over 20,000 volumes. At the end of 1500 Rocca planned to donate his collection to the Augustinian Order and to place it at the disposal of the public as evidenced by a Pontifical Letter of 1595, wherein
Pope Clement VIII accorded him the right to donate the library. This authorization was renewed by
Paul V, and only in 1614 the instrument of conveyance was executed. The instrument, under which the transfer of the ownership title to the library over to the Convent of Sant'Agostino in Rome was effected, was associated with several clauses: 1) the library shall not be considered as coenobitic; and hence the Augustinian Fathers shall be allowed to go in as scholars and not as owners; 2) the library shall not be moved from the premises purposely built for it. The question of finding suitable premises for housing the library was in all likelihood the cause for the delay in carrying Rocca's plan into effect. He himself took on the assignment of purchasing little buildings standing in close proximity of the Church of Sant'Agostino, that were altered to meet requirements. He, further, endowed the library with independent incomes, with an initial capital composed of seven mountain places yielding 24
scudi per annum. In 1614, the library was joined to the convent library of
Sant'Agostino, which numbered about 20,000 books. By fra Angelo's testament – he was a bishop and here dispensed from the vow of poverty – his library should be open to everyone regardless of income or social standing. Thus the Angelica became one the first public libraries in Italy. In his seminal work
Advis pour dresser une bibliothèque (1644) the French scholar and librarian
Gabriel Naudé asserted that only three libraries in all
Europe granted in his times regular access to every scholar, namely the
Bodleian, the
Ambrosiana and the Angelica.
Later 17th and 18th centuries The two great collections, that is, those of the monastery of Sant'Agostino and of Rocca, augmented by later gifts of brethren and benefactors, constantly increased. In 1661 the German humanist
Lucas Holstenius, caretaker of the
Vatican Library, bequeathed to the Biblioteca Angelica his precious collection of about 3,000 volumes. In 1704, the great library of the Augustinian
Cardinal Henry Noris was turned over to the Angelica. The library of Cardinal
Domenico Silvio Passionei was purchased for the Augustinians in 1762 and at the same time the present spacious library was rebuilt, and the books were completely catalogued by three hard-working friars, namely , and Daniele Marcolini. The 54 volumes in folio which compose the old catalogue, made by Schmalfus and Tecker, are still in daily use. Unfortunately the catalogue of the manuscripts, made by Marcolini, has been lost. The Angelica underwent several renovations in the seventeenth century (by
Borromini) and eighteenth century (by
Luigi Vanvitelli and
Carlo Murena). Since 1975, it has been under the supervision of the
Ministry of Culture. By the 20th century, the library's collection has grown considerably: worthy of mention are the acquisitions of the 19th–20th century letters of the poet
Domenico Gnoli and archaeologist Felice Barnabei and, since 2000, those of the literary critic Arnaldo Bocelli (1900–1974), whose library (about 10,000 volumes) is also in the possession of the Angelica. Since the nineties, especial care has been taken to increasing bibliographical instruments and means of consultation, also on non-paper support materials. In 2004 a historical symposium was held at the Angelica to highlight its contribution to learning over the centuries. == Collection ==