 The town was invaded and destroyed more than one time in the 15th and 16th centuries.For example, in 1467 King Matthias I of Hungary during his expedition against Stephen the Great set fire to all towns, among them Bacău in his path.The customs records of Brașov shows that few merchants from Bacău crossed the Carpathian Mountains into Transylvania after 1500, and their merchandise had no particularly high value which suggests that the town was declining in this period.