What river is the castle that a stone was taken from to build the L-plan tower for Barscobe Castle on?
Threave Castle Threave Castle is situated on an island in the River Dee, 2.5 km west of Castle Douglas in Dumfries and Galloway, south-west Scotland.
Blarney Castle Blarney Castle (Irish: "Caisleán na Blarnan" ) is a medieval stronghold in Blarney, near Cork, Ireland, and the River Martin. Though earlier fortifications were built on the same spot, the current keep was built by the MacCarthy of Muskerry dynasty, a cadet branch of the Kings of Desmond, and dates from 1446. The Blarney Stone is among the machicolations of the castle.