No 41 Parnell Square – this building was formerly the Irish National Forester's Hall. Prior to 1916 it was used for drilling both by the Irish Republican Brotherhood (IRB) and the Volunteers; on the eve of the outbreak of the Easter Rising Éamon de Valera assembled the 3rd Battalion here. In 1922, subsequent to the Treaty and prior to the Civil War, the IRB again met here in a failed attempt at achieving consensus on the Treaty; among the attendees were Michael Collins, Harry Boland, Liam Lynch and Eoin O'Duffy – all of whom, with the exception of O'Duffy, were dead by the end of the Irish Civil War.