Below is Part 3 divided in 3 sections of a video series being done by Greek Orthodox TV in which they discuss the illuminating book by Fr. John Romanides titled Franks, Romans, Feudalism and Doctrine. I highly recommend everyone to have a listen, as it serves as a pretty good introduction to the subject. If you have not listened to Part 1 yet, you should listen to that first here. Part 2 is here.
Franks, Romans, Feudalism, and Doctrine - PART 3A
Franks, Romans, Feudalism, and Doctrine - PART 3B
Franks, Romans, Feudalism, and Doctrine - PART 3C
Franks, Romans, Feudalism, and Doctrine - PART 3A
Franks, Romans, Feudalism, and Doctrine - PART 3B
Franks, Romans, Feudalism, and Doctrine - PART 3C