The Baltic tribes had held on to their own religion for a long time and continued to do so for a longer period. Mindaugas was murdered by his nephew Traniate. Great confusion and relaps into paganism followed.
Only with Gediminas, who received title of grand duke of Lithuania in 1316 , did restoration of Lithuania start again. Gediminas undertook the restorations and building of many new cities with the help of colonists from Germany. The cities founded received German law statute (Magdeburg rights).
While the grand dukes of Lithuania starting with Jagiello also undertook ruling as the kings of Poland , their titles remained seperate. Mindaugas remained the only king of Lithuania.