Birr Castle is the oldest inhabited home in the county. In the 16th century the O'Carrolls of Ely had one of their castles here and this was granted to Sir Laurence Parsons in the course of the Stuart plantation, c. 1620. Sir Laurence Parsons built most of the structure of the present castle.
Open daily 9.00 - 18.00.
Birr, Co. Offaly