Leon Wasilewski
Leon Wasilewski ( 1870–1936 ) was an activist of the Polish Socialist Party ( PPS ) , a coworker of Józef Piłsudski , Polish Minister of Foreign Affairs , designer of much of Second Polish Republic policy towards Eastern Europe , historian and father of Halszka Wasilewska and of Wanda Wasilewska . 
<triplet> Leon Wasilewski <subj> Polish Socialist Party <obj> member of political party <subj> Wanda Wasilewska <obj> child <triplet> Józef Piłsudski <subj> Polish Socialist Party <obj> member of political party <triplet> policy towards Eastern Europe <subj> Józef Piłsudski <obj> creator <subj> Second Polish Republic <obj> country <triplet> Wanda Wasilewska <subj> Leon Wasilewski <obj> father <subj> Polish Socialist Party <obj> member of political party