Cahir Castle

Cahir Castle sits on a rocky island in the River Suir, which made water part of its defense. Its towers, curtain walls, and gate defenses helped make it one of Ireland's stronger medieval fortresses.

Cahir Castle is strongly associated with the Butler family, one of the major Anglo-Norman families in Ireland. The Butlers held it for centuries after receiving the lordship in the medieval period.

Yes, Cahir Castle was used as a filming location for John Boorman's Excalibur, released in 1981. Its intact medieval defenses make it useful for historical and fantasy productions.

In 1599, forces under the Earl of Essex captured Cahir Castle during the Nine Years' War. The siege is notable because artillery was used against what had been a formidable medieval stronghold.