Dolwyddelan Castle was built by Llywelan ap Iorwerth sometime between 1210 and 1240. The castle sits on a rocky ridge and served as a guard post along the road through north Wales.
A rectangular keep with a curtain wall comprised the original castle. It was captured by Edward I in 1283 during his conquest of Wales. Under the English, the walls were strengthened, a second tower was added, and the castle was occupied by a garrison until the mid 14th century.
The keep was restored, with slight modifications, in the mid 19th century.
My reconstruction of Dolwyddelan Castle is 25 inches long, 20 inches wide (80 x 64 studs) and is about 15 inches high.
For more photos of my reconstruction of Dolwyddelan Castle
For photos of the real Dolwyddelan Castle and other source