Possible variants of Polish surname Switzijnck

I have an acquaintance whose forefather emigrated to Belgium from Gdańsk in 1870. Her family name is as I wrote, and the family presumably owned a brewery in Gdańsk or Warsaw. I checked the internet but nothing. I suppose the name was wrongly registered at that time in Belgium. My questions...what could be a correct Polish variant of this surname, and does anybody know if there was a brewery with that name in Poland?

In my opinion it might be Święcik in Polish.

Could be a variation of the German family name Schwitzing.

I wonder which of the two is closest phonetically to the present one? I mean a Polish emigrant to Belgium in 1870 could have had his name misspelled easily upon entry. Also I was checking the internet for a brewery with both these names but nothing turned up.

Maybe Świciński?
Swi = Świ
tzij = ci
nck = ński
Sounds possibly and there is such Polish surname.

Here's a list of breweries from before 1945 that had German founders/owners:
brauwesen-historisch.de/1945.html

The German name Schwitzing and its variations are not among them so I think we can eliminate that possibility. Provided that the information that the family owned a brewery is correct, of course.