15 July – Saint Jacob of Nisibis

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler. (11 July)

Lives of the Saints by Francis Weninger.

Lives of the Saints by Sabine Baring-Gould.

Pictorial Lives of the Saints 

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

“The Nisibis Report: Why Jacob of Nisibis, Bishop and Canonized Mountaineer May Have Seen The Ark”

Contemporary Hagiography

BHL

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Theodoret, Ecclesiastical History 

Art & Architecture

Index of Medieval Art

Portail Biblissima

The Church of Saint Jacob in Nisibis (today Nusaybin in Turkey)

Fourteenth-century reliquary in Hildesheim

Lives and Legends of the Great Hermits and Fathers of the Church, with Other Contemporary Saints by Mrs. Arthur Bell.

The Saints in Art by Joseph Maria von Radowitz.