Martin Brod · Una and Unac · Late medieval

Rmanj Fortress

Rmanj fortress was raised near the meeting of the Unac and Una in the late fourteenth or early fifteenth century. The cantonal heritage institute records its first mention in 1431. The surrounding defenses are reduced to foundations, while a round tower survives to approximately ten metres. The nearby Orthodox monastery is a separate monument; this atlas anchor is centered on the actual defensive tower.

Explore the 3D model

Through the centuries

1431

First historical mention recorded by the heritage institute.

1524

Fortress falls under Ottoman control.

Surviving remains

Round tower remains above the lost defensive circuit.

Architecture & evidence

Round defensive tower

The cantonal heritage institute describes a surviving round tower about ten metres high. Its diameter follows the mapped OSM footprint; wall thickness and crown are estimated.

Tower interior

The source records vaulted separation between former levels. Exact vault geometry is unverified, so this model leaves the shell open instead of inventing interior rooms.

Lost defensive circuit

The surrounding castle walls are reported reduced to foundations. Their undocumented alignments are omitted; the river confluence remains visible through mapped scenery.

Plan your visit

The ruin lies in Martin Brod near the confluence; seek local advice on the approach and avoid climbing fragile masonry.

Get directions