28 June – Saint Leo II

Saint Léon II (France, Avignon. Bibliothèque municipale Ceccano, Ms. 136 f. 248v)

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

The Liturgical Year by Dom Guéranger.

Character Calendar

The Lives of Saints, with Other Feasts of the Year, According to the Roman Calendar by Peter Ribadeneira.

La vie des saints

Tradition in Action

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Breviarium Romanum – Latin & English.

Art & Architecture

Index of Medieval Art

Europeana

Post-Biblical Saints Art Index

Lives and Legends of the English Bishops and Kings, Mediaeval Monks, and Other Later Saints by Mrs. Arthur Bell.