You're standing in the open plaza in front of Porto's cathedral, a square created in the 1940s by tearing down the medieval neighborhood that stood here.
Last reviewed 10 October 2026 · A three-minute read · 588–1953
The short answer
Terreiro da Sé, the stone plaza outside Porto Cathedral, was created in the 1930s and 1940s when city planners demolished the medieval neighbourhood pressed against the cathedral walls, clearing streets, a bishop's jail and a chapel to open ground that had served as a burial site since the 9th century and a crusader meeting point in 1147.
View of Porto — 2012 · G Da · CC BY-SA 3.0
1940s
A medieval quarter was cleared to make this square
You're standing in Terreiro da Sé, a wide stone plaza outside Porto's cathedral. It looks ancient, but it is not. Before the 1940s, this ground was a tangle of medieval streets and houses, packed tight against the cathedral walls.
City planners tore nearly all of it down. Gone were the old Cadeia do Bispo, a house that had belonged to the Count of Castelo de Paiva, and whole streets with names like Rua das Tendas and Rua do Faval. A chapel that stood right across from the cathedral door, the Capela dos Alfaiates, was taken apart stone by stone and rebuilt elsewhere in 1953. A stone house-tower nearby survived the clearance and was reconstructed as the Torre Medieval do Porto, now standing a short walk from where you are.
The idea behind the demolition was to let the cathedral breathe, to clear away what planners of the time saw as a decayed and crowded district. When the dust settled, the city placed a new pillory, a stone column once used to punish criminals in public, at the center of the square in 1945. It marked the end of the rebuilding work around the cathedral.
1147
Crusaders anchored below helped capture Lisbon
Long before the demolitions, this spot was where a bishop made a deal that changed Portugal. Crusaders from England, Flanders and Germany had anchored their ships on the Douro River, on their way to the Holy Land. The Bishop of Porto persuaded them to stop here first and help King Afonso Henriques take Lisbon from the Moors. The cathedral behind you had just been built over an older Suebian church, raised by Count Henry and his wife Teresa, the parents of Portugal's first king.
9th century to 1333
Christians were buried here before the square existed
Before any of that clearing work, this ground was already a burial place. Renovation crews working under the cathedral's front staircase found tombs dating to the 9th century, evidence that Christians were burying their dead here long before the square existed.
Inside the cathedral itself, around 1333, a Gothic chapel was built for João Gordo, a knight of the Hospitaller order who served King Dinis I. João Gordo's tomb still shows his carved figure lying down, surrounded by reliefs of the Apostles.
1387
A king married an English princess in the cathedral
Centuries later, the cathedral hosted a royal wedding. King João I married Princess Philippa of Lancaster here, sealing an alliance between Portugal and England that has lasted longer than almost any treaty in Europe.
1757
The square hosted a day of civic ceremony
Before the 20th-century demolitions reshaped this ground, the square already served as a stage for state ceremony. On June 7, 1757, a formal event brought together the Municipal Senate, the cathedral clergy and the public for a day of civic celebration, the kind of occasion the square was built to hold.
Before 1940
The square carried older names before Terreiro da Sé
Before it was Terreiro da Sé, this square carried other names. Locals called it Largo da Sé, and for a time it was named Terreiro de Dom Afonso Henriques, after the king whose crusader allies had gathered here in 1147.
1940s to today
Surviving buildings still frame the cathedral square
Around the square, the buildings that survived or were rebuilt still frame the view. The Paço Episcopal do Porto was rebuilt in 1737 by the Italian architect Nicolau Nasoni. The old city hall, the Antiga Casa da Câmara, was reconstructed again in 2002. The Torre Medieval do Porto, saved from the clearance of the 1940s, now houses Porto's tourism office a short walk from the square.
In 1845, the writer Almeida Garrett described the view from here as a grandiose spectacle in his book O Arco de Sant'ana. The praise still holds. From this plaza you can look out over the Barredo district toward the Douro River, the rooftops of Vila Nova de Gaia across the water, and the Dom Luís I bridge in the distance.
1945
A new pillory was made to look centuries old
The pillory placed here in 1945 looks like a relic of old Porto, carved in a Rococo style associated with the 18th century. It is not. An earlier pillory, made in the Manueline style, had stood on this ground since 1517, replaced by a Rococo version in 1757 before that one, too, eventually gave way to the one standing in front of you now.
The pillory, the palace and the tower around you were all rebuilt within living memory, standing on ground that has held a church, a crusader's bargain and a royal wedding for nearly nine hundred years.
Read the ground you are standing on
Every person, building and event in this story opens into its own dig in the app — and Strata will dig the ground under your feet instead, wherever that is, in about a minute, with every source shown.
Renovation work beneath the front staircase of Porto Cathedral uncovered tombs dating to the 9th century, evidence of Christian burial on this ground long before the square existed.
An ambulant market called the Mercado de Levante operated along Rua Escura and Rua de São Sebastião beside the cathedral from medieval into modern times, one of Porto's oldest trading grounds.
In 1147 the Bishop of Porto persuaded English, Flemish and German crusaders moored on the Douro to join King Afonso Henriques in capturing Lisbon from the Moors.
The street now called Rua de São Sebastião was once Rua da Sapataria, 'Shoemakers' Street,' a name recorded as early as 1286, with a canon named Abril Peres owning a house there by 1295.
Around 1333 a Gothic funerary chapel went up inside the cathedral for João Gordo, a knight who served King Dinis I, his recumbent figure carved on the tomb among reliefs of the Apostles.
Luis Eduardo Padilla Coronell, a Spanish royal military leader who died in 1531, is recorded as buried in Porto Cathedral, just steps from where you stand.
A small roadside shrine, an alminha, was set into the wall at number 53 Rua de São Sebastião in 1699, the kind of marker usually placed at the site of a death or accident.
During the War of the Oranges in 1801, Spanish troops took control of Porto Cathedral for a time before local forces drove them out, with deaths in the fighting.
Through the 1930s and into 1940, city planners tore down entire quarters of medieval Porto in front of the cathedral, including the Bishop's Jail and the heraldic house of the Count of Castelo de Paiva, to open this square.
The Chapel of Tailors stood directly facing the cathedral door until it was dismantled during the 1930s clearance and rebuilt in 1953 on Rua do Sol, where it still stands.
A hidden medieval tower-house, long buried among the old streets, came to light during the 1940s demolitions and was reconstructed as the Medieval Tower of Porto, now a tourist office.
The stone pillory now standing at the center of the square was built in 1945 by a masonry cooperative in a mock 18th-century style, not an original Manueline piece as it is often taken for.
A tangle of medieval streets and houses stood pressed against Porto Cathedral, including the Cadeia do Bispo, the house of the Count of Castelo de Paiva, and the Chapel of Tailors facing the cathedral door, all demolished through the 1930s and into 1940.
Why was the medieval neighbourhood around Porto Cathedral demolished?
City planners wanted to let the cathedral breathe, clearing what they saw as a decayed and crowded district, and the rebuilt square was completed with a new pillory placed at its centre in 1945.
What happened at Porto Cathedral in 1147?
The Bishop of Porto persuaded crusaders from England, Flanders and Germany, anchored on the Douro River, to help King Afonso Henriques capture Lisbon from the Moors before continuing to the Holy Land.
Is the pillory in the square original?
No. The stone pillory standing at the centre of Terreiro da Sé was built in 1945 in a mock 18th-century Rococo style, replacing earlier pillories that had stood on the ground since 1517.
What royal wedding took place at Porto Cathedral?
In 1387 King João I married Philippa of Lancaster at the cathedral beside the square, sealing the Anglo-Portuguese Alliance.
What survived the 1940s demolition near the square?
A hidden medieval tower-house was uncovered during the clearance and rebuilt as the Torre Medieval do Porto, which now houses the city's tourism office a short walk from the square.
Where this came from
1
Portoalities — Ninth-century tombs under the cathedral steps
2
Wikipedia — Spanish soldiers briefly seize the cathedral
