Lowland castle

Trakai Castle (Lithuania), an island castle

The term lowland castle or plains castle (German: Niederungsburg, Flachlandburg or Tieflandburg) describes a type of castle based that is situated on a lowland, plain or valley floor, as opposed to one built on higher ground such as a hill spur. In Germany, about 34 percent of all castles (Burgen) are of the lowland type.[1]

Because lowland castles do not have the defensive advantage of a site on higher ground, sites are chosen that are easy to defend, taking advantage, for example, of rivers, islands in lakes or marshes. Where such natural obstacles do not exist, artificially similar obstacles take on added significance. These include water-filled or dry moats, ramparts, palisades and curtain walls. In order to increase the height of the castle above the surrounding terrain, artificial earth mounds may be built (such as mottes), and fortified towers also fulfil this purpose.

Castles of the Early Middle Ages (including Slavic and Saxon castles) often had a narrow, deep ditch and high and steep earth ramparts.

Lowland castles are naturally found on plains such as the North German Plain or in the Netherlands. But they may also be encountered occasionally in highlands, for example in a valley as a so-called island castle (Inselburg) on an island in a river (e.g. Pfalzgrafenstein Castle).


The moat at Calvörde Castle was linked to the River Ohre via a canal system

Sub-types according to function:


Groß Raden, castle from the Early Middle Ages


  1. Krahe, pp. 21-23 (2002)


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