Lassus Castle

Lassus Castle, also known as Château de Lassus or Hamoir-Lassus, is a historic château located in the municipality of Hamoir within Liège Province, Wallonia, Belgium. Situated directly on the banks of the Ourthe River, the structure originally served as the residence for the hereditary mayors of the village. While the exact construction date of the entire complex is not specified, its oldest surviving component is a small donjon dating back to the early 14th century. For a significant portion of its history, the estate remained the property of the de Maillen family, who left an enduring mark on the site, including a stone dedication from 1612 and the establishment of a small internal chapel in 1633.

The architectural evolution of the castle reflects several distinct periods of renovation and stylistic change. During the 18th century, the buildings were entirely remodeled in the Louis XIV style, characterized by French Baroque and Classicism elements. A subsequent major transformation occurred between 1907 and 1920 under the supervision of Puck Chaudoir, a wealthy banker from Liège who owned the property at the time. Today, the least modernized sections are the river frontage and the medieval donjon, while most other outbuildings from earlier centuries have disappeared, leaving only the stables and barns that surround the central courtyard. Opposite the main castle stands a separate chapel dedicated to Saint Peter, founded in 1396, which houses Renaissance interiors containing tombstones of the de Donéa and de Maillen families.

Currently, Lassus Castle is privately owned but serves a commercial purpose by offering rental holidays to the public. This adaptive reuse allows visitors to experience the historic atmosphere of the estate while ensuring its continued maintenance. The site represents a layered history of Belgian nobility and architectural adaptation, transitioning from a medieval defensive structure and mayoral residence to a refined country estate and finally to a modern hospitality venue. Its proximity to the river and the survival of key historical elements like the donjon and family chapels make it a notable landmark within the region's catalog of castles.