6 April – Saint William of Æbelholt/Eskilsø 

Annus Dierum Sanctorum
Persecutionem patimur, sed non derelinquimur.
We suffer persecution, but are not forsaken.
Dejicimur, sed non perimus.
We are cast down, but we perish not.
2 Corinthians 4.9
S. Genovefa
Noli timere, bonum Deum habemus Iesum Filium Dei.

Modern Hagiography

Roman Martyrology

Lives of the Saints by Alban Butler.

La vie des saints

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

An extract from his Life, and another

On William and Absalon

Art & Architecture

Warburg Institute Iconographic Database

Æbelholt Kloster

A fresco in Fanefjord Kirke in Denmark (cannot find photo without watermarks)

Saints and their Attributes

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

The Saints in Art by Joseph Maria von Radowitz.

Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.