>>213028675 (OP)The Roman-Catholic nobility & royalty throughout Europe betrayed him because he was an Orthodox Christian, and because he was the only 'prince' in Europe's history to eliminate the nobility class, replacing it with the equivalent of ministerials/officials – from “boyars”, to “baiers”.
His betrayal by other nobilities & royalties was among the prime exposé why the feudal-medieval system was so broken.
No amount of scriptorium revisionism, no amount of germanic printing press chroniclers narrative casuistry & character assassination, will change this ironclad fact.
The Garterers & nobles might claim genealogical descendance but betrayal is betrayal.