Reid, in his _Annals of Auchterarder_, relates how, after the Civil War, Lord Dundrennan, in company with his cousin, George Lochan of Ochiltree, and burgess of Auchterarder and the Laird of M'Nab, descended into Strathearn and occupied the castle with about fifty men.

He hurriedly put it into a state of defence.

General Overton besieged the place in person, with his army, consisting of eighteen hundred foot and eleven hundred horse, and battered the walls with cannon, having brought a number of great ordnance from Stirling Castle.

For ten days the castle was held by the small but resolute garrison, and might have held out longer had not the well failed.

With the prospect of death before them in the event of the place being taken, Dundrennan and Lochan contrived to break through the enemy, who surrounded the castle on all sides.