Genealogy / Any one know anything of Koss surname? [22]

Hope I'm not too late, lol.

I'm from Brazil and got Slavic descendance (mostly Polish and Ukrainian). My grandmother's surname is Koss, but it was changed after her family came to Brazil, it was originally Kos. They were from the region of Czudowice (when Poland was still Galicia, in the Austrian-Hungarian Empire), everyone from that region that got this surname on their family tree probably are related to me.

Some people here said that Koss is a germanized version of Kos, which I find funny since there's also the surname Szyler in my family tree, that's like Schuller in Polish, lol.