However, the structure of the current castle buildings dates back to 1605.
The benefits of castle building on settlements was not confined to Europe.
Unfortunately, this meant that the smaller, older castle buildings became obsolete.
Of the castle buildings, only the keep remains to any significant height.
There has been some debate over the absence of indigenous Irish castle building.
The military sold parts of the main castle buildings as construction materials in the surrounding areas.
In the 16th century these ruins were used as a platform for feudal castle building.
One factor was the introduction of stone into castle building.
There is no access to castle buildings but most of the grounds are available to walk round freely.
The castle building itself was used as accommodation for 400 soldiers.