One more chapter of our main subject, being taught here, European History of Middle Ages, based on many resources, such as books, encyclopedia etc, and designed specifically, the way, material and language are used, to serve E-learning, where teacher-writer of this subject is graduate from Open University, along with knowledge from University of Athens, mainly in ref. to later chapters of core era of Middle Ages, and furthermore, having followed courses of MBA, History of Middle Ages to detail,