Shirin R. answered 11/03/19
Reading/English/Language Arts/Social Studies/History
The last pagans in Europe were the Baltic and Slavic peoples, who had strong pockets of paganism among them until the Late Middle Ages (that is, the 14th and 15th centuries).
As examples of what I mean, the Lithuanians were all pagans until 1389, when Jogaila married the Roman Catholic Queen of Poland, Jadwiga, and converted to Roman Catholicism. Paganism what is now Russia, Belarus, and Ukraine, however, persisted among peasants until the 15th century.