Located between the villages of Fleringen and Tubbergen, De Kroezeboom is a large, ancient summer oak ("Quercus robur"), known to be the oldest registered pedunculate oak in the Netherlands and estimated to have been planted sometime between 1500 and 1600. The tree stands next to a modest open chapel and is supported by sturdy steel braces that help preserve its aging branches. The site’s open position atop raised farmland, enclosed by meadows and distant trees, offers a serene rural atmosphere that contrasts with more urban or enclosed historical sites. An informational panel onsite provides details about the tree and its historical context.

Archaeological and Historical Findings  

Research involving both archaeological findings and historical records suggests that De Kroezeboom served as a boundary marker, probably planted between 1500 and 1600 to delineate property limits on the Es (a type of raised field). The term "kroezeboom", meaning “cross tree,” indicates that it functioned as a notable landmark within the local land division system. During the Reformation era, the area acquired religious significance, notably for the Catholic community, who are believed to have gathered secretly beneath the tree’s canopy until around 1730. In 1909, a chapel was built near the tree to honor local religious traditions and the return of Catholic worship. This original chapel was replaced between 1944 and 1945 by the current structure dedicated to the Sacred Heart of Christ. Today’s site features both the venerable oak supported by metal braces and the small brick and wooden chapel, which contains a statue of the Sacred Heart.

Accessibility and Visitor Information 

The Kroezeboom is reachable by car via an unpaved path originating from a nearby country road. This approximately 100 meter route crosses flat grassy ground and is usually accessible, though it may become muddy after rainfall. Visiting the tree is free of charge.