In 1324 the first hospital was founded.[4] The first known image of the coat of arms of Jawor, preserved on the city seal comes from 1300.[5] Jawor has grown into one of the most important centers of weaving in Lower Silesia.[5] In 1329 Jawor was granted staple right by Duke Henry I of Jawor.[5] In the 14th century, the first guilds were founded, bringing together furriers, tailors, clothiers and merchants.[4]