Baron Dunboyne is in Baron Ireland.
In 1314 Thomas Butler 1st Baron Dunboyne [aged 43] was created 1st Baron Dunboyne.
On 9th October 1329 Thomas Butler 1st Baron Dunboyne [aged 58] was killed at the Battle of Ardnocher by the Chief of the Clan Geoghegan. His son Piers [aged 35] succeeded 2nd Baron Dunboyne.
On 8th May 1370 Piers Butler 2nd Baron Dunboyne [aged 76] died. His son Thomas [aged 16] succeeded 3rd Baron Dunboyne.
Before 7th November 1370 Thomas "MacPiarais" Butler 3rd Baron Dunboyne [aged 16] died without issue. His brother William [aged 15] succeeded 4th Baron Dunboyne.
In 1406 William Butler 4th Baron Dunboyne [aged 50] died. His son Piers succeeded 5th Baron Dunboyne.
On 28th November 1415 Piers Butler 5th Baron Dunboyne died without issue. His brother Edmond succeeded 6th Baron Dunboyne.
In 1419 Edmond Butler 6th Baron Dunboyne died without issue. His brother James succeeded 7th Baron Dunboyne.
In 1445 James Butler 7th Baron Dunboyne died. His son Edmond succeeded 8th Baron Dunboyne.
In 1498 Edmond Fitzjames Butler 8th Baron Dunboyne died. His son James succeeded 9th Baron Dunboyne.
In 1508 James Butler 9th Baron Dunboyne died. His son James [aged 18] succeeded 10th Baron Dunboyne.