History of Gliwice

Gliwice was first mentioned as a town in 1276 and was ruled during the Middle Ages by the Silesian Piast dukes. During the reign of Mieszko I Tanglefoot, the town was part of a duchy centered on Opole-Racibórz, and became a separate duchy in 1289. According to 14th-century writers, the town seemed defensive in character and was ruled by Siemowit of Bytom. The town became a possession of the Bohemia crown in 1335,