sentences:  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
  
  The most radical changes in the estate and the whole surrounding, were introduced during the times of the Duchess’ great-great-grandson – Roman Potocki, who married Elżbieta "née" Radziwiłł.They carried out a major overhaul and rearrangement of the large Łańcut estate, at the same time providing the 17th-century structure with electricity, water pipes, sewers, and central airflow heating.