Following Izabela's death in 1816, Łańcut was inherited by her grandchildren and members of the Potocki family. For the next one hundred years, the castle became the centre of their hereditary family estate, legally established in 1830. The consecutive generations of the Potocki's introduced various levels of modernisation both in the castle itself and its immediate and more distant surrounding. The Duchess’ grandson and heir, conducted some repairs in the castle, but most importantly he erected a complex of horse-riding facilities consisting of stables and three carriage houses