7 April – Saint Aphrahat

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

La vie des saint 

Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly.

Pictorial Half Hours with the Saints by Auguste François Lecanu.

Tradition in Action

Writings of Saint Aphrahat

Documenta Catholica Omnia

Select Demonstrations

On Faith

On Love

On Penitents, audio

Medieval Hagiography

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Art & Architecture

Portail Biblissima

Saints and their Attributes
Saints and their Emblems

7 April – Saint Hegesippus

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Pictorial Lives of the Saints 

Medieval Hagiography

Acta Sanctorum

In Eusebius’s Ecclesaistical History IV.22 (and he is referenced as a source multiple times: ii.23; iii.20; iii.32; iv.8).

In Jerome’s In viris illustribus

Writings of Saint Hegesippus

Documenta Catholica Omnia

Fragments

Art & Architecture

Portail Biblissima

Medieval Religion Listserv

Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – plume.

6 April – Blessed Notker the Stammerer

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Sanctorale Catholicum

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL

Acta Sanctorum

Ekkehard of St. Gall, Three Monks of St. Gall (pdf, and also)

Writings of Blessed Notker

Life of Charlemagne (pdf)

A Letter from Notker to Liutward (in manuscript)

Art & Architecture

Europeana

Medieval Religion Listserv

Cannot find the manuscript origin of this image
Saints and their Attributes
Saints and their Emblems

Music

Notker Balbulus: Sequnezen, Tropen & Gregorianisch