Tuam achieved a new importance after it became the seat of the O'Connor High Kings of Ireland in the early 11th century. The O'Connors had previously been based at Cruachain, County Roscommon.
Tuam's importance increased when it was chosen as the residence of the O'Connor High Kings of Ireland during the early 11th century. Before this, the O'Connors were based in Cruachain, County Roscommon.