Wasserburg Goldstein

The remains of the former Wasserburg Goldstein stand in Frankfurt’s south-western district of Goldstein, once a fortified noble seat surrounded by a double or even triple moat fed by the Schwarzbach stream. Archaeologists uncovered the heart of the complex in 1975–76: a large oak-pile raft measuring thirteen by eighteen metres supported the main tower, dated by tree rings to 1369. A later bridge, built between 1466 and 1470, once crossed the pond to the tower, while fragments of stone foundations mark where barns and stables once stood.

The fortress was first mentioned in 1348 when Johann Goldstein built a ‘castle’ here, though imperial law forbade such works within five miles of Frankfurt. By 1382 the estate was split between two owners, one of them the patrician Johann von Holzhausen. In 1397 the city bought half the site, and by 1400 Frankfurt owned the whole stronghold, installing Wolf von Praunheim-Sachsenhausen as its steward. During the Fürstenaufstand of 1552 imperial soldiers torched the castle as they withdrew after failing to take the city.

Today the site lies within Goldsteinpark, where only the outlines of the moats can still be traced. The sole visible remnant is a classical manor house built about 1860, now a community meeting point. The park also preserves traces of the 19th-century English garden laid out by Heinrich Siesmayer, Frankfurt’s first major landscape commission. Paths wind past where the Schwarzbach once filled the defensive ditches, offering quiet glimpses of the vanished water fortress amid modern housing.