Her husband had purchased the site which contained the ruins of an earlier fortress as he wished to build a Renaissance château there.

The restored castle is architecturally fascinating, a splendid example of the transition between earlier rugged fortress and later mansion house.

The foundations of this early fortress remain.

However, due to hundreds of years of development, no archaeological evidence of this early fortress has been found.

The castle was rebuilt following a fire in 1893, and only the towers of the earlier medieval fortress remain.

The peninsula ends at Dennis Head, the site of an early Celtic fortress.

The early fortress comprised five bastions, multiple soil ridges, and water channels.

It had been built on the remnants of an earlier, and even grimmer fortress.

It was the earliest legionary fortress in Wales.

Most early medieval fortresses were made of earth and timber.