Battle of Knocknaclashy Boyle had inspired a mutiny among the English Royalist garrison in Cork, causing them to defect to the Parliamentarians. This had outflanked the defences of Irish Confederates and English Royalists, causing them to retreat behind the river Shannon into Connacht, where they held the fortified cities of Limerick and Galway. Henry Ireton went on to besiege Limerick. The only organised Irish forces remaining in south Munster were those of Donagh MacCarthy, Viscount Muskerry, who held out in the mountainous area of west Cork and county Kerry – which was his clan’s native territory. In July 1651, Muskerry set out from
Local Government (Ireland) Act 1898 of the Irish Free State and Northern Ireland. The Act caused a number of county boundaries to be modified. This was for several reasons: The extents of the new administrative counties and county boroughs, which came into effect on 18 April 1899, were defined by orders of the Local Government Board for Ireland. There were no changes to the boundaries of the counties of Cavan, Cork, Donegal, Fermanagh, Kerry, Kildare, King's (Offaly), Leitrim, Limerick, Longford, Meath, Monaghan, and Tyrone; nor to those of the county boroughs (previously counties corporate) of Cork, Dublin, Limerick, and Waterford. Changes elsewhere were as follows: