Another new series starting tonight, this time with actor Simon Delaney looking at the history behind some of our most famous castles - offering information on the state of the country, local wars and the families who once lived in them. This first episode will take a look at the political state of Ireland in the 12th century and explores some of the earliest Norman castles in the country, including Dublin, Trim, Carrickfergus, Limerick and Ashford Castle in Mayo.