Kisimul Castle built
1427 CE.
Shown on the map at 56.952°, -7.487°.
Kisimul Castle (Scottish Gaelic: Caisteal Chiosmuil) and also known as Kiessimul Castle, is a medieval castle located on a small island off Castlebay, Barra, in the Outer Hebrides, Scotland. It gets its name from the Norse ciosamul, meaning "castle island".
Text from the Wikipedia article Kisimul Castle, licensed CC BY-SA 4.0.