Carlow Castle settled
1210 CE.
Shown on the map at 52.836°, -6.936°.
Carlow Castle (Irish: Caisleán Cheatharlach) is located near the River Barrow in County Carlow, Ireland. It was built between 1207 and 1213, and is a National Monument of Ireland.
Text from the Wikipedia article Carlow Castle, licensed CC BY-SA 4.0.