In 1209 A.D. Ruler John yielded Carrigogunnell to Donchad Cairbreach O'Brien, at a yearly rent: of 60 marks, or about £40.
The property was given on O'Brien in affirmation of the way that he had formally paid veneration to the King. A comparative King John furthermore enabled land to the De Burgo family.
They got some in Castleconnell, and besides had touch base in the Ballybrown area, in what was known as "Escalon" which consolidated the broad town put where there is Newtown.
By the mid-fifteenth century De Burgos touch base in Escalon had gone under the control of the Earl of Desmond, and in 1449 Desmond introduced the land on Brian Duv O'Brien of Carrigogunnell.
Brian Duv was winning by his youngster Donough who kicked the can in 1502, and; was winning by his tyke Mahon or Mahowne. Carrigogunnell Castle appears to have been worked by Brian Duv, in or around 1449, and remember that it may have been founded on the site of an earlier structure, there appears, all in all, to be no affirmation of its world when the O'Brien's at first got the give of Carrigogunnell in 1209.