He is married to Rose Maria Auguste Anna Alexandra Branicka.
They got married on April 16, 1874 at Parijs, he was 36 years old.
Child(ren):
Bron: https://en.wikipedia.org/wiki/Stanis%C5%82aw_Tarnowski
en: http://genealogics.org/getperson.php?personID=I00049361&tree=LEO
en: http://www.sejm-wielki.pl/b/2.261.142
The data shown has no sources.