Stones From One of Henry VIII's Fortresses Spent More Than a Century Hidden in Plain Sight. New Research Suggests the Victorians Repurposed Them as Building Materials

Fragments of a Tudor fortress thought to have largely disappeared from England’s shoreline may have remained visible for generations in an unexpected setting. Newly identified archival material indicates that late-Victorian builders working on an addition to Dover Castle’s Constable’s Gate used stone taken from Sandown Castle, a nearby defensive site associated with Henry VIII’s era.

The proposed link gives Sandown Castle a more complicated afterlife than its familiar story of loss to the sea. Coastal erosion is central to how the fortress has been remembered, but the new evidence suggests that some of its masonry did not vanish with the structure. Instead, portions may have entered another historic complex and possibly reached further locations in East Kent.

Researcher Moore connected the sites through a combination of documentary investigation and close attention to surviving architectural material. The case is not based solely on an old written reference or solely on the appearance of the stones. Rather, it brings those strands together to examine whether the fabric of Dover Castle’s nineteenth-century work preserves traces of an earlier Tudor building.

The inquiry began with a passage in The History of the King’s Works, the multi-volume study assembled by architectural historian Howard Colvin during the twentieth century. While reading it, Moore noticed mention of a Tudor-period diary connected to the construction of Sandgate Castle. That Kent fortress was erected in roughly the same period as Sandown, making the record potentially useful for understanding the wider building activity of the time.

Finding the diary itself proved difficult. Moore first approached the British Museum to ask whether it held a copy, but staff could not locate one and pointed him toward the British Library. The second institution also failed to produce the volume. Moore said the two bodies had apparently come to believe the other was responsible for it, leaving the diary effectively missing from view.

That detour underscores how historical discoveries can depend on gaps in catalogues, uncertain institutional assumptions and persistent archival work as much as on a dramatic excavation. A record that seems peripheral at first can become significant when it is placed alongside physical evidence. In this case, the trail has offered a possible explanation for why Tudor-era material may appear within a much later phase of construction at Dover Castle.

The findings also draw attention to nineteenth-century reuse as a chapter in the history of historic buildings, rather than simply a period of replacement. Builders extending the Constable’s Gate were creating a new element at Dover Castle, yet the evidence now suggests they may have incorporated material from an older fortress into that work. The result would have joined two sites separated by both location and centuries of change.

For Sandown Castle, the research complicates the idea of a monument wholly erased by erosion. Its surviving legacy may be dispersed rather than concentrated at its original coastal position. Moore said the documentary record and remaining material point to a continued presence at Dover Castle and elsewhere in East Kent, although the evidence identifies a connection rather than supplying a complete account of every stone’s later journey.

The next questions concern the scale of that reuse and whether additional records or building fabric can clarify where other Sandown pieces went. The current work offers a framework for revisiting structures that may contain repurposed material, while also showing why claims of survival require both archival support and architectural scrutiny. What appeared to be a vanished Tudor fortress may therefore still be embedded in the region’s built landscape.

Source: Smithsonian Magazine