In 1000 years Adolf Hitler will be remembered as...

[Okay, maybe Mike Johnson is a competent parliamentarian.]

I think there's some merit to what Old Europe is describing, but I think it would probably take the form of seeing Hitler sort of like we see Attila, Alaric, and other barbarian leaders of the Migration Period, rather than seeing him outright positively, since I think intense emotional antipathy towards the British and French colonial empires will probably also have faded in a thousand years.

This is more or less how Hitler is seen by the characters in Frank Herbert's Dune books--bad dude, killed a bunch of people (especially by the standards of his age), not someone who inspires violent emotional reactions except among descendants of the specific groups he targeted.

[Okay, maybe Mike Johnson is a competent parliamentarian.]

Off the top of your head, does anybody remember a single person who was alive in 1019?

Edward the Confessor, possibly Lady Murasaki depending on what date for her death we accept, and I thought Olga of Kiev but I looked it up and she died about fifty years earlier.