At the age of 14 he entered the monastery of Montecassino, where he was received by Abbot Desiderius, who set him on the path to knowledge of the Holy Scriptures and made him librarian of the monastery.
By order of Abbot Oderisius he wrote in three books a Chronica monasterii Casinensis, from St. Benedict to Abbot Desiderius, later Pope Victor III (1086-87), whose life from chap. 34 of book III was continued by Peter the Deacon (1st ed., Venice 1513, but incomplete; the 1st complete ed., Paris 1668, reproduced by L. Muratori, in RIS, IV,
Milan 1723, pp. 151-628 and in MGH, Script., VII, 574 ff. He also wrote Vita s. Mennatis. Peter the Deacon also recorded his Sermones and the Historia peregrinarum.
Bibliography6 worksU. Balzani, Le cronache ital. nel Medio Evo, Milan 1900, pp. 158-66; W. Smidt, Über den Verfasser der drei letzten Redakt. der Chronik Leos
BIBL.: U. Balzani, Le cronache ital. nel Medio Evo, Milan 1900, pp. 158-66; W. Smidt, Über den Verfasser der drei letzten Redakt. der Chronik Leos von Monte Cassino, in Papsttum u. Kaisertum... P. Kehr zum 65. Geburtstag dargebracht, Munich 1926, pp. 263-86; G. Leidinger, Der eodes lat. manac. 4623 (Chronik des Leo Mars.), in Casinesia, II, Montecassino 1929, pp. 365-68; H. W. Klewitz, Petrus Diaconus u. die Montecassiner Klosterchronik des Leo von Ostia, in Archiv für Urkundenforschung, 14 (1935), pp. 414-53; W. Smidt, Die vermeintl. u. die virkl. Urgestalt der Chronik Leos v. Montecassino, in Quell. u. Forsch. aus ital. Arch. u. Biblioth., 28 (1938), p. 287 ff.; B. de Gaiffier, Translations et miracles de St Menus par Léon d'Ostie et P. de Mont-Cassin, in Anal. Boll., 62 (1944), pp. 5-32.
Felice da Mareto. “Leone Marsicano, detto leone ostienne.” In Enciclopedia Cattolica, vol. VII, coll. 1138–1139. Città del Vaticano: Ente per l’Enciclopedia Cattolica e per il Libro Cattolico, 1951. https://azioneromana.com/article/leone-marsicano-detto-leone-ostienne.
MLA
Felice da Mareto. “Leone Marsicano, detto leone ostienne.” Enciclopedia Cattolica, vol. VII, Ente per l’Enciclopedia Cattolica e per il Libro Cattolico, 1951, coll. 1138–1139. Azione Romana, https://azioneromana.com/article/leone-marsicano-detto-leone-ostienne.
BibTeX
@incollection{ec7_leone_marsicano_detto_leone_os,
author = {Felice da Mareto},
title = {Leone Marsicano, detto leone ostienne},
booktitle = {Enciclopedia Cattolica},
volume = {VII},
pages = {1138--1139},
note = {Cited by column},
publisher = {Ente per l’Enciclopedia Cattolica e per il Libro Cattolico},
address = {Città del Vaticano},
year = {1951},
url = {https://azioneromana.com/article/leone-marsicano-detto-leone-ostienne}
}
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