Analysis of information sources in references of the Wikipedia article "Cometopuli dynasty" in English language version.
Theophylactus, the Byzantine Archbishop of Achrida from 1078 to 1107, for example, calls Saint Clement of Ohrid a "Bulgarian" in his hagiography, and, in his numerous letters, makes a number of statements, e.g., "he has lived a long time in the land of the Bulgarians", refers to his enemies in the local population as "Bulgarians", addresses a letter to the "Bulgarians taught by him", etc.