Bishop of Gangra, Paphlagonia (modern Çankiri, Turkey). Attended the Council of Nicea where he fiercely defended the divinity of Christ. When he returned home, he was martyred by a group of heretics who opposed his view.
- Book of Saints, by the Monks of Ramsgate
- Catholic Online
- Our Sunday Visitor’s Encyclopedia of Saints
- Roman Martyrology, 1914 edition
- “Saint Hypatius of Gangra“. Saints.SQPN.com. 14 November 2013. Web. 25 October 2014. <>