Bartosiewicz/Hlohovec/Galgocz

I am seeking information on the Bartosiewcz family from Galgocz now Hlohovec. I am particularly interested in any nformation about the location of the Bartosiewicz estate or how one might get that information. I am trying to help a friend fill in gaps in her research. My mother knew this family when she was a child in Hlohovec. My friend has worked through the Slovak Archives but that search did not result in addresses where the famly lived.