On 10 May 1642 he stormed the Castle of Ballymacpatrick ( now Careysville ) , near Fermoy , which was held by his grand - aunt .
On 10 May 1642 he hanged forty of the rebel leaders before breakfast .
On 10 May 1642 he stormed the Castle of Ballymacpatrick ( now Careysville ) , near Fermoy , which was held by his grand - aunt , and hanged forty of the rebel leaders before breakfast .