an Entity references as follows:
The Christianization of Lithuania (Lithuanian: Lietuvos krikštas) occurred in 1387, initiated by King of Poland and Grand Duke of Lithuania Władysław II Jagiełło and his cousin Vytautas the Great. It signified the official adoption of Christianity by Lithuania, the last pagan country in Europe. This event ended one of the most complicated and lengthiest processes of Christianization in European history.