The confusion/non-recognition of the above concepts in Western (i.e. Roman Catholic and Protestant) theology is integral to the different theologies which developed in "in the West" <ref>"The West" is an over-simplification referencing how the Western Roman Empire fell to the Barbarians, and consequently developed various heterodox beliefs. This, however, obfuscates the fact that some "Westerners" in fallen Rome (and Celtic territories) maintained Orthodox beliefs for a long time. In other words, not all Christians in and around fallen Western Rome accepted heterodox beliefs. Hence the Antiochian Archdiocese, in particular, has within its jurisdiction a canonical Western Rite. </ref> and which underly the ''filioque''.