Herzogtum Schweidnitz-Jauer
In 1346, the town joined seven other urban centers in forming the Silesian Association of Fortified Towns. In that same year, the Duchy of Jawor with Bolesławiec was inherited by Duke Bolko II the Small of Świdnica, and upon his death in 1368, it was inherited by Emperor Charles IV, who had married Duke Bolko's niece Anna of Świdnica. After the dissolution of the Duchy of Jawor in 1392, the town was incorporated into the Kingdom of Bohemia, itself a state of the Holy Roman Empire.