Wer sind die Aschkali/„Balkan-Ägypter“?

Sabria?

They’re muslim and culturally albanised Roma communities as far as I know. 

they really have nothing to do with egypt, they are romas who lost their language and culture, now they speak albanian

I read that they are descendants of Egyptian soldiers who (unfortunately, not proud of that part of our history) fought with Ottomans against the Greek revolutionaries during their war of independence and escaped from Greece eventually settling in Albania.

Source: https://en.m.wikipedia.org/wiki/Ottoman–Egyptian_invasion_of_Mani

https://core.ac.uk/download/pdf/131933442.pdf

It might be to some extent true for some of them, but not all.