In January 1603, after the defeat of Kinsale, Donal Cam O'Sullivan Beare arrived at Leitrim Castle with only thirty five from the thousand or so followers with whom he had started the long march from Dunboy, Co. Cork. Brian Óg O'Rourke, who was the last leader to remain in rebellion, was finally besieged at Leitrim Castle. In April Brian Óg fled to Rosa-Iarla Friary near Lough Corrib, where he died in January 1604.