Granuaile's Castle is a tower house and National Monument located in Clare Island, Ireland.
Granuaile's Castle is located on the east coast of Clare Island.
Granuaile's Castle was built in the 16th century by the àMáille (O'Malley), Kings of Umaill. It was a stronghold of Gráinne NàMháille (Grace O'Malley, c. 1530 â c. 1603), the famous "pirate queen." Her other strongholds were at Rockfleet Castle (on Clew Bay) and Carrickkildavnet Castle.
In the 1820s the castle was converted into a police barracks, when the purple slate flashing was added to the two bartizans.
The main living room was at that first floor level with access to the bartizans and the garderobe.