Ross Castle, Killarney National Park, Kerry, Ireland.
Ross Castle (Irish: Caisleán an Rois) is the ancestral home of the O'Donoghue clan. It is located on the edge of Lough Leane, in Killarney National Park, County Kerry, Ireland.
Ross Castle was built in the late 1400s by local ruling clan the O'Donoghues, though ownership changed hands during the Desmond Rebellion of the 1580s. The castle was amongst the last to surrender to Cromwellian's Roundheads during the Irish Confederate Wars, and was only taken when artillery was brought by boat via the river lane.