In 1916, the execution of the leaders of the Easter Rising turned public sympathy in favour of the rebels. 24 rebels were executed during the 1919–21 War of Independence, starting with Kevin Barry. In Munster, which was under martial law, 13 were shot in Cork and one in Limerick. "The Forgotten Ten" were hanged in Mountjoy Prison, which helped turn opinion in Dublin against the Dublin Castle administration. The last execution under British authority was of William Mitchell, a Black and Tan convicted of the murder of a justice of the peace.