Flint was the first great castle built for Edward I during his campaigns to defeat Llywelyn ap Gruffudd and subdue the Welsh. The castle was built on land next to the Dee estuary between 1277 and 1284. The inner ward is a square with a large tower at each corner. The southeast tower was larger than the others and separated by its own moat and drawbridge. The Dee estuary fed water into a moat that surrounded the landward side of the castle.
This material came from castlexplorer.co.uk