An important Welsh strong hold and centre over the centuries - from mint to seat of government One of the biggest fortresses in Europe. One of the 'iron ring' castles of north Wales. Once a key ...

By the medieval period, the kingdoms within Wales had largely solidified into Gwynedd, Brycheiniog, Powys, Deheubarth, Gwent and Morgannwg. A map ... Castles were built in the marcher areas of the ...

There are roughly 427 castles in Wales, 100 of which are still standing. Here's a taster of some of them, taken by members of the BBC Wales Nature Flickr group. You can find out more about castles ...