Germinius was bishop of Sirmium

Sirmium

Sirmium was a city in ancient Roman Pannonia. Firstly mentioned in the 4th century BC and originally inhabited by the Illyrians and Celts, it was conquered by the Romans in the 1st century BC and subsequently became the capital of the Roman province of Lower Pannonia. In 294 AD, Sirmium was...

 and a supporter of Homoian theology, which is often labelled as a form of Arianism

Arian controversy

The Arian controversy describes several controversies between the Christian Church fathers Arius and Athanasius related to Christology which divided the Christian church from before the Council of Nicaea in 325 to after the Council of Constantinople in 381...

. Along with Valens of Mursa and Ursacius of Singidunum

Ursacius of Singidunum

Ursacius was bishop of Singidunum, , during the middle of the Fourth Century...

 he was responsible for drafting the theological statement known as the Blasphemy of Sirmium in 357

357

Year 357 was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Iulianus...

. He also appears in the Altercatio Heracliani laici cum Germinio episcopo Sirmiensi, which purports to be the minutes of a public disputation between Germinius and a Nicene layman called Heraclianus in January 366

366

Year 366 was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratianus and Dagalaifus...

. He is believed to have died in 375

375

Year 375 was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year after the Consulship of Augustus and Equitius...

 or 376

376

Year 376 was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valens and Augustus...

.