Landfort Herle - Credit: Wikimedia Commons
Landsfort Herle was a fortification with a moat in the centre of Heerlen, Netherlands (roughly the current Pancratiusplein). It was probably built by the counts of Ahr-Hochstaden (also referred to as Heren van Are)Heerlen.nl The name Landsfort (‘fort of the land’) was introduced in the 19th century, based on the fact that the fortification falls under the responsibility of the land. The fort can more accurately be classified as a so called fortress church (German: Kirchenburg); a (fortified) church surrounded by a curtain wall. Landsfort Herle appears to be the only Kirchenburg in the Netherlands (not to be confused with Wehrkirchen or fortified churches, which are more numerous, but lack the curtain wall). In the 13th century Heerlen and landsfort Herle, came into the possession of the Dukes of Brabant. The Landsfort was (re)built by the Dukes of Brabant in 1244.Heerlen.nl Read more on Wikipedia
Source: en.wikipedia.org