These are carved from rock and fitted with iron rings ... to have had a portcullis. Cadw has remarked: "Such a sophisticated entrance cannot be matched in any other Welsh castle.

The drawbridge at Threave Castle near Castle Douglas (above) went over a moat flooded with water from the River Dee. A portcullis was a heavy metal gate at the entrance of a castle. The defenders ...

Hewn out of the rock, they’re embedded with iron rings ... each had a portcullis too. Cadw said: “Such a sophisticated ...