 In 1128, the Polish voivode Piotr Włostowic established an Augustinian monastery on Mount Ślęża which was later moved to Wrocław, while the area remained a property of the Augustinian order.The settlement was first mentioned in an 1148 bull issued by Pope Eugene III as "Sabath", from , , "Saturday", referring to a weekly market.The market rights were confirmed by the Silesian duke Bolesław I the Tall in 1193.