Text and Translation at Wikipedia
The Liturgical Year by Dom Guéranger.
20 December – Saint Paul of Latros
Modern Hagiography
Lives of the Saints by Alban Butler.
Pictorial Half Hours with the Saints by Auguste François Lecanu.
Art & Architecture
Heilige Paulus van Latros (maybe?)
20 December – Saint Vincenzo Romano
Modern Hagiography
The Holiness of the Church in the Nineteenth Century: Saintly Men and Women of Our Own Times by Constantine Kempf.
Art & Architecture
Nihil sub sole novum 