Anatomy of a Castle: The Castle Keep

Keep in the center of Blackness Castle, Scotland

Within the castle walls you will find the Castle Keep. The Keep is a heavily fortified central tower serving as the last defense of the castle. This might also be called a donjon, especially academically, though donjon is not to be confused with dungeon, they are different things altogether. If the enemies have breached the castle walls and gotten past the gatehouse to the inner bailey - everyone would be in the castle keep, and they would try as they may to defend it. It was the last stronghold. 

The Keep at Trim Castle, Ireland

View of Castle Keep at Chepstow Castle, Wales

Strategically situated on a Cliffside on the River Wye

Keep & Great Hall at Caerphilly Castle, Wales

Depending on the date of the castle, some keeps were central towers, giants rising from within the inner bailey. Later, some were built so that one side of the keep was part of the castle walls. Most often, the Great Hall would be found near the bottom of the keep and the living quarters at the top. 

Keep of Carrickfergus Castle, Ireland

Keep of Ross Castle, Ireland

Round Keep of Pembroke Castle, Wales

Interior (looking up) of Round Keep at Pemrboke

Though in its day, there would have been several floors to this tower 

and a staircase to reach them all. Now it is home to a million pigeons and doves

whose cooing was amplified magnificently. 

Anatomy of a Castle: The Gatehouse

Gatehouse at Kidwelly Castle, Wales

Cross the drawbridge and you'll likely find yourself staring up at the gatehouse, the front door of the castle and arguably the strongest part of the castle.  Flanked, usually, by two enormous towers, peppered with arrow loops, and a slew of armed guards. The gatehouse might sometimes be referred to as a barbican, which is defined as a defensive tower, usually a double tower, of a castle or walled city, often above a gate or drawbridge.

Bridge over moat and Grand Gatehouse of Caerphilly Castle, Wales

Gatehouse of Carrickfergus Castle, Northern Ireland

Gatehouse at Pembroke Castle, Wales

Barbican & Gatehouse at Harlech Castle, Wales

Gatehouse at Caernarfon Castle, Wales

The tunnel through the gate is often extremely thick, supporting several doors or gates, usually including a portcullis. A portcullis is a heavy gate or grill, usually made of metal, which could be raised and lowered with pulleys inside the gatehouse. If lowered at the right time, the portcullis could be a weapon in its own right, impaling or crushing enemies. Two doors lowered in concert could also trap enemies. From within the gatehouse, soldiers could shoot arrows through arrow loops as well as make use of the murder hole. A murder hole is a gap, situated inside the doorway, above where people enter, through which boiling water, hot oil, and rocks might have been heaved upon unsuspecting enemies.

Gate and Portcullis at Cahir Castle, Ireland

Ruined Gate at Rock of Dunamase, Ireland

Anatomy of a Castle: Moat & Drawbridge

Most people have heard of moats & drawbridges and they make a castle quite iconic as well as very well defended. A moat is a steep, defensive trench or ditch, sometimes dry or filled with water. A drawbridge is a bridge that can be raised or lowered over the moat. The moats could also be stocked with fish for the residents to eat.  Visiting castles with moats is quite a treat. Visually they are stunning, grand fortified islands reflecting in the water.

Moat surrounding the impressive Caerphilly Castle in Wales, the largest castle in Wales and second only to Windsor Castle in the UK

Caerlaverock Castle, Scotland

A wooden bridge spans across the moat where a drawbridge once would have been.

Moat & Bridge around Caerlaverock Castle, Scotland

Bridge over moat, Raglan Castle, Wales

Moat at Raglan Castle, Wales, full of lily pads