Wissem Castle

Wissem Castle, formerly also known as the free noble and parliamentary estate "Wiesheim", is a castle in Troisdorf-Mitte. The estate, originally built as a moated castle, dates back to the Carolingian era.

Wissem is an elongated rectangular complex, open on the west side, whose water defenses are now only partially preserved. Two diagonally corresponding corner towers complete the complex. After 1840, the manor house was built, which was renovated and restored in 1954/55. It is located on the south side of the complex and was built as a two-story classical plastered building.

The east side is occupied by a long quarry stone wing from approx. 1550. Here, in the coach house, exhibitions and concerts regularly take place. The 18th-century brick wings on the north and west sides, damaged in the war, were replaced by new buildings in 1962; the gabled ashlar portal from 1741 on a newly erected gatehouse was preserved. Public funding through Regionale 2010 enabled a conversion and new construction of the west wing between 2010 and 2012.

The first owner known by name was Rembold von Plettenberg in 1435. Through inheritance, the estate passed from the Plettenbergs to Johann from the noble family von Zweiffel in 1511. His son Caspar had Haus Wissem renovated from 1548 and built the so-called outer bailey (coach house), which is still preserved today. Through the marriage of Johann Franz Gerhard von Cortenbach to Anna Klara von Zweiffel, the estate came into the possession of the Cortenbach family in 1646, then in 1784 through an inheritance contract to Johann Ernst von Landsberg zu Olpe, then to Franz Bernhard von Hocherbach. In 1826, Friedrich von Hövel inherited the castle and sold it two years later to Ernst August von Beust. From him, Baron Clemens von Loë acquired the estate in 1833. His descendant Maria von Loë, married Baroness von Elverfeldt, sold Wissem Castle to the municipality of Troisdorf in 1939.

From 1945 to 1981, the house served as the town hall.