Genealogy / Count & Countess Lanckoronski/Great Grandfather's Military Service [5]

I have two questions:

Can anyone tell me something about Count & Countess Lanckoronski and their children? My great-great grandmother might have worked on their estate in the Luslawice area and I'm interested in knowing all I can about them.

My great-grandfather was born in 1870 in Luslawice. He never served in the military. We, his descendants, find it odd that he didn't serve. What would the possible reasons be for not having to serve?

Thanks!