Turkish Religious Leader in France
The immigrants brought their religion with them and caused a great deal of suspicion and friction.
The authorities cracked down and many were martyred, including the man who had led the immigrants for a quarter of a century.
He was the bishop. His name was Irenaeus.
He had served well, rebuilding the local church community and writing powerfully against the recycled pagan mysticism known as Gnosticism that was enjoying popularity inside and outside the Church.
Irenaeus' greatest work Adversus Haereses is still widely read. He also played a critical role in Scripture scholarship.
St. Irenaeus died in 202 and his memory is celebrated on this day.
(adapted from an earlier post)