Modern Hagiography
Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould.
Medieval Hagiography
The Life of Saint Richarius by Alcuin (in Latin)
Art & Architecture
Lives and Legends of the English Bishops and Kings, Mediaeval Monks, and Other Later Saints by Mrs. Arthur Bell.
Music
Modern Hagiography
Catholic Legends: A New Collection by Augusta Theodosia Drane.
Art & Architecture
Catalogo generale dei beni culturali
Customs & Devotions
Prayer to Our Lady of Good Counsel
Another Prayer to Our Lady of Good Counsel
Prayer to Our Lady of Good Counsel
Most glorious Virgin, chosen by the Eternal Counsel to be the Mother of the Eternal WORD made Man, treasure-house of divine graces and advocate of sinners; I, the most unworthy of thy servants, have recourse to thee, begging of thee to be my guide and counselor in this vale of tears. Obtain for me, through the most precious blood of thy divine Son, forgiveness of my sins, and the salvation of my soul with all the means necessary to secure it. Obtain for Holy Church triumph over her enemies and the extension of the Kingdom of Jesus Christ over the whole earth. Amen.
Indulgence of 100 days, once a day. — Leo XIII, Nov. 23, 1880.
Pope makes surprise outing to visit shrine dedicated to Saint Augustine
Modern Hagiography
Sanctorale Catholicum – Saint Cletus.
Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould – Pope Cletus & Pope Marcellinus.
The Liturgical Year by Dom Guéranger.
Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly – Pope Cletus.
Pictorial Half Hours with the Saints by Auguste François Lecanu – Pope Cletus.
The Lives of Saints, with Other Feasts of the Year, According to the Roman Calendar by Peter Ribadeneira.
Tradition in Action – Pope Marcellinus
Medieval Hagiography
Pope Cletus – BHL & Supplement
Pope Marcellinus – BHL & Supplement
Acta Sanctorum – Pope Cletus & Pope Marcellinus
The Cult of Saints in Late Antiquity Database – Pope Cletus & Pope Marcellinus
Liber pontificalis – Pope Cletus & Pope Marcellinus
The Golden Legend – Pope Marcellinus and Illustrations
Breviarium Romanum – Latin & English.
Writings of Pope Cletus
Writings of Pope Marcellinus
Art & Architecture
Index of Medieval Art – Pope Cletus & Pope Marcellinus
– El Escorial, Real Biblioteca, Cod. Vitrinas 17, folio 4v: SANCTVS CLETVS EPISCOPVS ET MARTYR TERCIVS VRBIS ROMAE A SANCTO PETRO (detail above)
– Folio 5v: SANCTVS MARCELLINVS XXX PAPA (detail above)
Catalogo generale dei beni culturali – Pope Cletus & Pope Marcellinus
Portail Biblissima – Pope Marcellinus
Vatican Colonnade – Pope Marcellinus
Warburg Institute Iconographic Database – Pope Cletus & Pope Marcellinus
Post-Biblical Saints Art Index – Saint Cletus & Saint Marcellinus
Nihil sub sole novum 
