What is "ibora"

Ibora was a city in the late Roman province of Helenopontus, which became a Christian bishopric. It is now called İverönü, Erbaa in present-day Tokat Province, Turkey. This is stated also by the Annuario Pontificio, which lists the bishopric as a titular see.

The article by Siméon Vailhé in the 1910 Catholic Encyclopedia placed its site at modern Turhal in the same modern province.