Limerick is known as the Treaty City, so called after the Treaty of Limerick signed on the 3rd of October 1691 ater the war between William III of Hanover of England and his Father in Law King James II.

Limericks role in the successful ascession of William of Orange and his wife Mary Stuart, daughter of King John II to the throne of England cannot be understated.

The Treaty, according to tradition was signed on a stone in the sight of both armies at the Clare end of Thomond Bridge on the 3rd of October 1691.

The stone was for some years resting on the ground opposite its present location, where the old Ennis mail coach left to travel from the Clare end of Thomond Bridge, through Cratloe woods en route to Ennis.

The Treaty stone of Limerick has rested on a plinth since 1865, at the Clare end of Thomond Bridge. The pedestal was erected in May 1865 by John Rickard Tinslay, mayor of the city.