3 May – Saint Alexander

Modern Hagiography

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

The Liturgical Year by Dom Guéranger.

Medieval Hagiography

BHL, Supplement

Liber pontificalis 

Writings of Pope Alexander

Documenta Catholic Omnia

Art & Architecture

Warburg Institute Iconographic Database

Post-Biblical Saints Art Index

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