The reason to allow this might be that it took care of long term maintenance and that it put the terrain under surveillance.

Later archaeological excavations found and mapped the remains of the main castle south of the outer bailey.

[4] In 1456 Hendrik van de Aa married to Margaretha Oem became Lord of Bokhoven.

[6] During the conflict with Gelderland that culminated in the Guelders Wars (1502-1543), lord Jan van der Aa (?-1540) chose the Habsburg side.

Maximilian I, Holy Roman Emperor later made Jan a knight in the Order of the Golden Fleece.

In 1650 Artus Quellinus the Elder made a splendid funerary monument for Engelbert II and his wife Hélène de Montmorency.

[7] Meanwhile, Bokhoven survived the Eighty Years' War as a Liège enclave in the Dutch Republic.

The Count of Immerzeel and his wife then left to live at Loon op Zand Castle .

Their son Ferdinand Albert Hyacinthe of Immerzeel was lord from 1677 till 1696 and died childless.

[9] In 1702 Count Charles van Immerzeel resided in the castle with his servants, horses and whole train.

This was probably due to the French troops getting too close to his castle in Loon op Zand, where he normally lived.

[10] In 1794 Count Anne Louis Alexander de Montmorency, prince of Robeke (?-1812) was on the castle, fleeing for the French revolutionary army.

The feudal rights were annulled, but the prince was allowed to retain the property of the lands and the ruins of the castle.