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 ...

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 ...

Wales had troubled the Plantagenet ... This clip could be used together with a map of the English and Welsh border, to identify the location of castles. Pupils could consider why they were located ...