The ruins of Trim Castle are. more extensive than those of any other castle in Ireland. Trim is the ancient Ath Truim (the ford of elder-tree) : the ancient ford can still be seen above the town bridge over the Boyne. The castle was built to protect this. Though it is commonly called King Johns Castle the present castle, which is Edwardian in plan, was certainly not. built until after the date of Johns visit to Ireland. A castle was founded ... Read More