Alden Biesen is a 16th-century castle in the small village of Rijkhoven, municipality of Bilzen, province of Limburg, Belgium.

"European Classes" are also held there to foster international learning and student collaboration.

In addition to the moated castle, the complex contains a church and gardens.

The knights of the Teutonic Order founded the Landcommanderij Alden Biesen ("commandery of Alden Biesen") in the 11th century, but the current buildings were constructed between the 16th and 18th centuries.

[1] It was the headquarters of a bailiwick or province of the Teutonic Order in the region of the Maas and Rhine.