Old Cathedral of Coimbra

Listen first. Footsteps echo off the stone. Somewhere a student laughs on the steep lane below, and the sound bounces between pale walls. In front of you rises a wall of golden limestone, heavy and square, topped with stepped battlements like a castle. The stone feels warm in the afternoon sun. This is the Old Cathedral of Coimbra, the Sé Velha, and before you learn anything about it, notice one thing. It does not look like a church. It looks like a building that expected to be attacked.

That impression is not an accident. This cathedral rose in the twelfth century, at a time when Coimbra stood close to a dangerous frontier. To the south lay lands still under Muslim rule. The young kingdom of Portugal was fighting to push that border away. Its first king, Afonso Henriques, made Coimbra his capital, and a capital needed a cathedral that could double as a refuge. So the builders gave it thick walls, narrow windows, and battlements along the roofline. Faith and defence shared the same stones.

The style is called Romanesque — the round-arched building style that spread across Europe before Gothic arrived, known for solid walls and rounded vaults. Many historians consider this the finest Romanesque cathedral in Portugal, and one of the best preserved. Building began in the second half of the twelfth century. Tradition credits two foreign master builders, usually named as Master Robert and Master Bernard, likely from France. That would explain why the design feels connected to churches along the great pilgrim roads of northern Spain and France.

Now look at the main doorway, on the western front. It sits inside a tall, projecting block of stone, almost like a gatehouse. Layers of rounded arches step inward toward the door. Above it, a large window repeats the same rhythm. Run your eyes over the carved capitals at the tops of the slender columns. You will find leaves, interlaced patterns, and small creatures. Some of these motifs have an Islamic flavour, a reminder that craftsmen in this region absorbed influences from both Christian and Moorish worlds.

Here is something many visitors miss. Coimbra was the capital of Portugal for well over a century, until the court moved south to Lisbon in the thirteenth century. During that period, this hilltop was the political heart of the country. Kings came here. Ceremonies of state happened here. Local tradition holds that the second king of Portugal, Sancho the First, was crowned inside these walls. The quiet square you are standing in was once one of the most important places in the kingdom.

Walk around to the north side and the mood changes completely. Here you meet a doorway known as the Porta Especiosa, which simply means the beautiful door. It belongs to a later age, the Renaissance of the sixteenth century, when Coimbra was a centre of sculpture in fine white limestone. The doorway rises in stacked tiers of columns, niches and carved figures. Much of the delicate stonework has worn away with time and weather. Even so, the contrast with the rugged western front is striking. Two eras stand side by side on one building.

Step inside, and the light drops. Your eyes need a moment. The nave is tall and narrow, with a barrel vault overhead — a continuous rounded ceiling, like the inside of a stone tunnel. Above the side aisles runs a gallery, a raised walkway with arched openings looking down into the church. The air is cool, even in summer. The stone muffles the sounds of the city. What you notice most is weight. Everything here presses down, steady and calm.

Look toward the far end, at the main chapel. There stands a large carved altarpiece, gilded and crowded with figures. It was made in the early sixteenth century by Flemish carvers — craftsmen from the region of today's Belgium, famous across Europe for this kind of detailed wooden work. It is late Gothic in style, full of pointed canopies and tiny scenes. Against the plain Romanesque walls, the gold glows almost like a lamp.

Now a second surprise. In the sixteenth century, the inside walls were covered with glazed tiles imported from Seville, in Spain. These tiles carried geometric patterns in green, blue and honey tones, a style shaped by Moorish design. Later restorations removed many of them, because restorers wanted to return the church to its original medieval look. But some survive, especially around the lower walls and side chapels. Look closely and you can see how they once made the grey stone shimmer.

Those restorations deserve a moment of thought. In the late nineteenth and early twentieth centuries, architects stripped away many later additions to recover the twelfth-century building. Some people praise this work. Others regret the loss of centuries of changes. What you see today is partly a medieval church and partly a modern idea of what a medieval church should look like. That is true of many old buildings in Europe. Here, it is worth keeping in mind as you walk.

Off the side of the church lies the cloister, a covered walkway around a small garden. It dates from the thirteenth century and shows the arrival of Gothic style in Portugal, with its pointed arches and lighter forms. Yet each large opening still frames pairs of smaller rounded arches, so old and new ideas sit together. The cloister is quiet, with soft light falling on old tomb slabs. It is a good place to sit for a few minutes.

For centuries this was Coimbra's cathedral. Then, in the 1770s, the role moved to a former Jesuit church further up the hill, after the Jesuits were expelled from Portugal. That church became the New Cathedral, the Sé Nova, and this one became the Old. But the Sé Velha never lost its place in the life of the city. Its broad front steps belong to the students of the university nearby. During the great student festival each spring, a night-time serenade of Coimbra fado takes place right here. Coimbra fado is a song tradition sung by students in black capes. Thousands gather in silence on these steps to listen.

Before you leave, turn around and face the lanes you climbed. One of the streets leading up here has a nickname that means back-breaker, and your legs probably agree. The whole upper town, together with the university, is recognised as a World Heritage Site. Look once more at the battlements against the sky, at the worn carvings, at the students passing in dark capes. This building has watched kings, bishops and generations of singers. Now, for a few minutes, it is watching you.