of Ostróg was changed to the manorial area of Racibórz-Castle. On 5 January 1927, the manorial area of Racibórz-Castle was incorporated into Racibórz and
Upper Silesia, and at that time Racibórz was still the only Upper Silesian city with a water supply system. A map of Racibórz from 1831 shows a wooden pipeline
began, funded by Przemysław of Racibórz. The dedication was most likely performed by Tomasz II, who sought refuge in Racibórz from Duke Henry Probus at that