Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Hey!
I've tried to find something about my great grandfather's grandfather, his name was Ignacy Szlaski, he was born in Warsaw and all I found out was that he was really rich and one of his daughter's name was Janina Szymanska, she was married to Stanislaw Szymanski and they came to Estonia in 1900's. Now I'm stuck, maybe you could please help me?

sorry it that's the wrong place where to post it..