Privilege of Mielnik
After the death of Kazimierz Jagiellonczyk ( 1492 ) , the personal union between the Kingdom of Poland and the Grand Duchy of Lithuania was broken . 
<triplet> Kazimierz Jagiellonczyk <subj> Grand Duchy of Lithuania <obj> country of citizenship <triplet> Kingdom of Poland <subj> Grand Duchy of Lithuania <obj> diplomatic relation <triplet> Grand Duchy of Lithuania <subj> Kingdom of Poland <obj> diplomatic relation