Genealogy / COUNT AND COUNTESS DECROIX [15]

I am looking for the DeCroix family that lived in Warsaw circa 1850-1900. I am looking for information. They lived in an estate near a beautiful park and hotel called the mirror lake hotel. They had 2 daughters. The father was french with the name DeCroix and his wife was polish descent. They were count and countess, with 2 daughters. Natalie and Josephine. If anyone can help me get information on any of this I would appreciate it. Or connect me with some who could help.

Thanks so much God bless you.

Sincerely,
Dale