Vatican City, Jun 30, 2016 / 03:08 am (CNA/EWTN News).- With the Eastern Orthodox wrapping up their “pan-Orthodox Council” this past weekend, it might be a good time to take a look at the factors that separate Catholics from their sister Churches in the east.

The main issues of disagreement are the primacy of the Bishop of Rome and elements of Trinitarian teaching, although conflict also exists over the Immaculate Conception, purgatory and other doctrines.