Nazwisko: MARCHWICKI

[przeski]

Eduardo, there is a way to find Marchwicki in Poland.
Easy one. Register yourself in Nasza Klasa web site http://nasza-klasa.pl/.
I just checked and there are 74 Marchiwckis register in Nasza Klasa.
Write them a short note/question in English. I will translate it into Polish.
According to the work of prof. Kazimierz Rymut there were 393 Marchwicka and 358 Marchiwcki living in Poland in 2000.
Actually you have pretty good chance to find relatives since Marchwicki surname is evidently not so popular.
The text which you placed in your first message might be good enough:

I'm looking for relatives in Poland with the surname MARCHWICKI. I have a great grandmother who was born in Poland. I would like to find out her place of birth and have more information about her family. The only information I know about her is that:

* Her name was Marja Marchwicka
* She was born IN Poland between 1884-1885
* She came to Brazil with her family about 1890-1891
* In some documents her father appears as Antoni and in others as Szymon
*Her mother was named Antonia or Antonina
* She married my great grandfather Jan Szczesny in 1903 in Curitiba- Brazil

I will write you directly how to register in Nasza Klasa.
Przemek