King John’s Castleis located in Limerick City. This was a a Viking stronghold in the 900’s but the arrival of the Anglo-Normans in 1172 changed everything. In 1200, King John of England who was then Lord of Ireland ordered for a castle to be built here which became one of the finest Norman castles in the country. The city prospered under the Norman rulers and the city was divided into 2 areas known as ‘English Town’ on King’s Island and ‘Irish Town’ on the south bank. By the 1550’s, Limerick was regarded as the most beautiful town in Ireland. In the 17th century however the castle came under attack in at least 5 occasions and was occupied in 1642 by Protestants fleeing the Irish Rebellion and was also besieged by an Irish Confederate force under Garret Barry who collapsed the walls. It was also used for council houses after Ireland gained it’s freedom in 1921! Recently it has been transformed into a state of the art visitor centre.