Trim Castle

Listen first. Beneath the jackdaws calling from the battlements, there is the low, steady sound of the River Boyne sliding past the walls. The grass under your feet is soft and springy, and the stone above you is grey, rough and patched with gold lichen. On a still morning, the castle seems to rise out of the green field around it. You are a short drive from Navan here, in the market town of Trim. And in front of you stands the largest Anglo-Norman castle in Ireland.

To understand why it is here, go back to the late twelfth century. The Anglo-Normans were descendants of the Norman knights who had conquered England, and they arrived in Ireland in the 1160s. The English king granted the vast territory of Meath to a powerful lord named Hugh de Lacy. Meath was rich farmland, and it was close to Dublin. Whoever held it held a key to the island. De Lacy needed a stronghold, and he chose this bend in the Boyne.

The first fortress was not stone at all. It was a timber fort on raised earth, protected by a ditch. According to the chronicles, it did not last long. In 1173, an Irish army led by Rory O'Connor, the High King of Ireland, advanced on Trim. The defenders could not hold the wooden fort, so they abandoned it, and it was burned. The lesson was clear. Timber could burn. Stone could not. Work on the great stone keep began soon afterwards.

Now look at the keep itself — the massive tower at the centre of the site. Walk around it, and count the corners if you can. The design is unusual. At its heart is a square tower, and from the middle of each of its four sides, a smaller square tower projects outward. The result is a cross-shaped plan with twenty corners. Very few castles anywhere were built this way. It made the keep look enormous from every angle, and that was part of the point.

A castle like this was a weapon, but it was also a message. The keep told the local Irish lords, and rival Norman barons, exactly who controlled Meath. It was built in stages, and work continued under Hugh's son, Walter de Lacy, into the early thirteenth century. You can still see changes in the stonework where one phase of building meets the next. Look for the slight shifts in the size and colour of the stones as your eye moves up the walls.

Around the keep runs the curtain wall, the long outer defence that encloses the whole site. It is broken by towers and gates at intervals. Much of the wall still stands, and it follows the shape of the ground rather than a neat geometric line. On the side facing the river, the Boyne itself served as part of the defence. On the town side, a ditch once added an extra barrier. Walking along the wall gives you a sense of just how much land this castle controlled.

Head toward the Dublin Gate, on the southern side, and you will find one of the most interesting features here. It is a barbican — an extra fortified passage built in front of a gate. An attacker who broke through the first gate would find himself trapped in a narrow space, with defenders above. Here is a detail many visitors miss. The barbican had a drawbridge, and you can still trace where it once crossed the ditch. Stand in the passage and imagine looking up at the arrow slits.

The castle also has royal connections. King John, the English king remembered for the Magna Carta, came to Ireland in 1210. Locals sometimes call this place King John's Castle, but historians doubt he ever stayed inside it. The second story is better supported. In 1399, King Richard the Second left two young boys here for safekeeping. One of them was Prince Henry, who later became King Henry the Fifth. So a future king of England spent part of his boyhood within these walls.

Over the following centuries, the castle slowly lost its purpose. Power in Ireland shifted, warfare changed, and great stone keeps became less useful. Parts of the site fell into ruin. Stone was taken away for other buildings. Grass grew over the courtyards. For a long time, the castle was more of a landmark than a fortress. Yet the keep never fell. Its thick walls were simply too solid. That is one reason so much of it survives today.

Here is a surprise for film lovers. In the 1990s, the castle appeared in the film Braveheart, directed by Mel Gibson. The film is set in medieval Scotland, but this Irish castle stood in for the city of York. Crews dressed the site to look like an English stronghold. If you have seen the film, you may recognise the shape of the walls. It is a strange twist — a Norman castle in Ireland playing a Norman city in England, for a story about Scotland.

In recent decades, the Office of Public Works, the Irish state body that cares for heritage sites, carried out careful conservation here. Inside the keep, new floors and walkways let visitors climb through the old tower safely. A protective roof now covers it. Access to the interior of the keep is usually by guided tour. From the top, you can look across the town, the river and the green fields of Meath. On a clear day, you understand why de Lacy chose this spot.

Before you leave, look across the river. You will see a tall, ruined stone tower standing alone on the far bank. This is the Yellow Steeple, the remains of an abbey that once stood beside the castle. Its stone can glow with a warm colour in evening light, which may explain the name. Together, the castle and the steeple show how medieval Trim worked. One building held military power. The other held religious power. Both looked over the same river.

So take a moment before you walk away. Listen again for the river and the birds. Run your hand over the cool stone of the curtain wall, if you are close enough. For more than eight centuries, people have stood here — soldiers, farmers, children, film crews, travellers like you. The keep still rises over the field, grey and silent. As you head back toward the town, turn around once more. Notice how the castle seems to grow larger, not smaller, as you leave it behind.