In 1703, eight-year-old Christoffel Arnold Adriaan Schenck van Nijdeggen was fatally wounded while playing with a loaded rifle. His father, Arnold Schenck, then bequeathed all his possessions to his wife Maria Catharina Margravine van Hoensbroeck. Hillenraad passed on to a cousin in 1736. This cousin Willem Adriaan van Hoensbroeck was already loaned to Hillenraad in 1733. In 1738 he handed over Hillenraad to his son Frans Arnold van Hoensbroeck, who in 1720 was married to Anna Catharina Sophia van Schönborn. They had 25 children together, some of whom were probably stillborn. The alliance crest above the entrance to the orangery in the large castle garden recalls this couple. The Van Hoensbroeck family would remain the owner of the castle for several generations. Hillenraad was rebuilt again under their son Lotharius Frans van Hoensbroeck: in 1766 a roofer died after falling from the roof. Under the Roermond bishop Philip Damiaan Lodewijk van Hoensbroeck, Hillenraad Castle was a center of musical life in the Maasland in the fourth quarter of the 18th century.
