castles historical shannon

It consists of a multi-sided enclosure, fortified by a strong wall probably of 15th century date. At the north end, overlooking the Shannon, is a four-storey tower, and to the east is a tower of three storeys, with a gabled roof and a fireplace on the first floor. Both of these buildings probably belong to the second half of the second half of the 16th century. There are also stout walls of another building within the enclosure.

Mahon O'Brien surrendered the castle to Grey, the Lord...