Answer
In 1531, Sigismund I of Poland, with the assistance of Transylvania, defeated the army of Moldavia, led by Petru Rareș, at the Battle of Obertyn. The Polish-Transylvania forces then marched to Moldavia and captured the capital, Suceava. However, the Polish-Transylvania forces were unable to hold on to Moldavia, and the country soon regained its independence.