you never really die on the internet.
There was so much bad blood between him and the Oxford University that Oxford students had to take a pledge never to reconcile with Henry Symeonis upon ther Bc graduation. This tradition stuck for 550 years.
https://www.zmescience.com/feature-post/culture/bizarre-stor...
And we are still aware of him today. Neither an important king, nor a great artist, just a guy who triggered a petty revenge from some long-dead academicians who are, ironically, likely completely forgotten, name and all.