derivative work of the following images: File:Great_Schism_1054_with_former_borders.png licensed with PD-self 2011-10-28T13:31:27Z Iaaasi 2000x2141 (548099...
The factual accuracy of this map is disputed. See File talk:Great Schism 1054 with former borders.png#Numerous problems, map is unreliable....
