Who confirmed the union between Poland and Lithuania during Władysław II Jagiełło's reign?
Council of Constance
Council of Ferrara
Pope Boniface IX
Pope Urban VI
Answer
The union between Poland and Lithuania during Władysław II Jagiełło's reign was confirmed by Pope Boniface IX, not Pope Urban VI. In 1386, Jagiełło, the Grand Duke of Lithuania, married Jadwiga, the Queen of Poland, leading to the personal union of the two countries.
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