Baron of Aghrim was a title created twice in the Peerage of Ireland

Peerage of Ireland

The Peerage of Ireland is the term used for those titles of nobility created by the English and later British monarchs of Ireland in their capacity as Lord or King of Ireland. The creation of such titles came to an end in the 19th century. The ranks of the Irish peerage are Duke, Marquess, Earl,...

, both times as a subsidiary title. The first creation was on 13 April 1676 for Lord John Butler

John Butler, 1st Earl of Gowran

John Butler, Earl of Gowran was a British peer. The seventh son of James Butler, 1st Duke of Ormonde and his wife, Elizabeth, Lord John Butler was created Earl of Gowran....

, who was created Earl of Gowran at the same time. Both titles became extinct a year later. The second creation was on 4 March 1692 for Godert de Ginkell

Godert de Ginkell, 1st Earl of Athlone

Godert de Ginkell, 1st Earl of Athlone, or in his own country of the Netherlands born Baron Godard van Reede was a Dutch general in the service of England....

, who was also created Earl of Athlone

Earl of Athlone

The title of Earl of Athlone has been created three times. It was created first in the Peerage of Ireland in 1692 by King William III for the Dutch General Baron Godard van Reede, Lord of Ginkel, to honour him for his successful battles in Ireland. The title also had the subsidiary title of Baron...

. This creation of the title (along with the Earldom of Athlone), became extinct in 1844.