Bredevoort Castle

Archaeological remains lie beneath and around the ‘t Zand square and the Hozenstraat, preserving the buried footprint of the medieval fortress. Excavations and exposures show the survival of foundations, fragments of walls, vaults, rubble deposits and passage-like features that belonged to the castle complex. These deposits are the physical remnants of a medieval stronghold whose recorded history begins in the late twelfth century.

A targeted excavation in 2009 revealed substantial wall fragments with preserved thicknesses of roughly 2.5 to 4.0 metres, indicating very robust masonry construction for defensive walls. The dig exposed foundation features and the outlines of a barbican, the forward defensive gateway complex, and these contours have since been marked on the ‘t Zand square with brass-coloured bands so the barbican’s plan is visible on the surface. The exposed sections are fragmentary and remain in situ beneath the square and adjacent streets.

Belowground features also include vaults and tunnel-like passages recorded during archaeological investigation, together with scattered rubble from collapsed structures. These elements testify to the layered construction and destruction phases the castle underwent between its medieval origins and its final ruin in the seventeenth century. The partial remains documented in 2009 lie close to where earlier records place the castle’s inner works and outer defenses.

Historical depictions and measurements accompany the archaeological record. Documentary and cartographic material describe the main central building as measuring about forty-two by thirty-six metres, a size that placed Bredevoort among the larger fortified houses in the region. Historic maps show the complex as a concentric watercastle with double moats, an enclosing wall and an outer bailey with corner towers; these representations inform how the buried remains are interpreted today. An 1882 drawing by Jacobus Craandijk depicts a square, moated plan resembling the type of the Muiderslot; that drawing is preserved in the historical record, but its fidelity to the medieval fabric is recorded as uncertain.