Flint Castle

Listen first. A thin wind comes off the water, carrying the smell of salt and wet mud. Gulls call over the flats. Underfoot, the grass gives way to gritty sandstone, worn smooth in places by centuries of boots. Ahead of you stand broken walls the colour of rust and old honey. Beyond them, the wide grey sheet of the Dee estuary runs toward England. This is Flint Castle, a few miles from Mold, and it was the first stone link in a chain.

That chain belonged to King Edward the First of England. In 1277 he marched into north Wales to break the power of the Welsh prince Llywelyn ap Gruffydd. As his army moved west, Edward began building here, on a low rock beside the estuary. Flint was the opening move. Over the following years, more great castles would rise along the coast — Rhuddlan, Conwy, Caernarfon, Harlech, Beaumaris. Historians often call them the Iron Ring.

Why here? Look out at the water and the answer becomes clear. In the thirteenth century, the tide came close to these walls. Ships could sail up the estuary from Chester and unload supplies, timber, stone and soldiers right at the castle. A fortress that could be fed from the sea was very hard to starve. Edward understood that the coast was his road. The land behind it belonged to the Welsh.

Now turn your attention to the shape of the place. Most of the castle is a square courtyard, with a round tower at three of its corners. But the fourth corner is different. There stands a huge circular tower, set slightly apart from the rest, with its own moat around it. This is the Great Tower, and it is the detail that makes Flint unusual among the castles of Wales.

Here is the first surprise. Nothing quite like this tower exists elsewhere in Edward's Welsh castles. Its design is closer to fortresses in France. Many writers compare it to a round tower at Aigues-Mortes, the walled port in southern France where Edward had sailed from on crusade. Whether or not that was the direct model, the idea is clear. This tower was a final stronghold. If the courtyard fell, defenders could still hold out inside it.

If you stand near the Great Tower, notice how thick its walls are. Inside, a passage once ran around the tower within the wall itself, like a corridor hidden in the stone. The centre was open, rising through several floors. Today the floors are gone, and you can look up into the empty shell. The masonry shows patches of repair, and the sandstone has weathered into soft ridges where wind and rain have scoured it.

The castle was not built in peace. In 1282 the Welsh rose again, led by Dafydd ap Gruffydd, the brother of Llywelyn. Flint came under attack. The town that Edward had planted beside the castle suffered as well. The rising ended badly for the Welsh. Llywelyn was killed later that year, and Dafydd was captured and executed. After that, Edward's grip on north Wales tightened, and building across the region speeded up.

That planted town matters too. Edward did not only build castles. He built new English towns beside them, laid out on a grid, with settlers brought in to live under the castle's protection. If you walk into Flint afterwards, you are walking through the bones of that medieval plan. The streets still follow lines set out more than seven hundred years ago, even though the buildings along them are much newer.

Now for the second surprise, and perhaps the most dramatic moment in the castle's story. In 1399, King Richard the Second came here. He was not a free man by then. His cousin, Henry Bolingbroke, had returned from exile and turned much of the kingdom against him. At Flint, Richard was handed over into Henry's power. Within weeks he had lost his crown, and Henry became King Henry the Fourth.

William Shakespeare set a famous scene of his play Richard the Second at this castle. In it, the defeated king stands on the walls and looks down at his rival waiting below. He must come down to meet him, and he knows that coming down means losing everything. So when you look up at these walls, you are looking at a stage for one of the great falls of English kingship — both in history and in drama.

The castle had one more war to see. During the English Civil War of the seventeenth century, Flint was held for the king, Charles the First. It changed hands during the fighting and was besieged. When Parliament finally won, its leaders did not want old castles to be used against them again. Flint was deliberately damaged, a process called slighting, so it could never again serve as a fortress. Much of the ruin you see is the result.

Since then, the sea has also moved. The estuary has silted up over the centuries, and the water no longer laps at the walls the way it once did. Instead you see saltmarsh, mudflats, and channels that fill and empty with the tide. On a clear day, the far shore of the Wirral is visible across the water. The castle is now cared for by Cadw, the Welsh government's historic environment service.

Before you leave, take a slow walk around the outside of the walls. Feel the rough stone under your hand. Look again at that lonely Great Tower, set apart in its moat, still keeping watch over the estuary. Listen for the gulls and the wind over the marsh. Kings, soldiers and settlers all stood where you stand now. What remains is quieter than it once was — open sky, grey water, and red stone holding its ground.