1.6 Conquest of the Algarve · 1249–1267

The Algarve cost a siege, one marriage too many and eighteen years of waiting

In 1249, with Faro, almost all the Algarve becomes Portuguese. But the king of Castile wanted the Algarve too, and peace was made with a wedding — the problem being that the Portuguese king was already married. A papal interdict, a countess left behind in France, and a little grandson to close the deal.

1249Silves · Faro · Badajoz12 min Português
The town of Silves with its castle, walls and the bridge over the river Arade, in an 1842 engraving
The town of Silves with its castle, walls and the bridge over the river Arade, in an 1842 engraving
«Cidade de Silves», O Panorama (1842) · Wikimedia Commons, public domain

Last episode of Season 1. The map of Portugal is about to be completed — but not in one go, and not only with swords. This story has two kings with the same name, two wives for the same king and a little grandson. So, as in the last episode, let’s meet the cast first.

Who’s who

And the story as a timeline, to check whenever you need it:

First, the map

In 1248, when the count became king, Portugal ran from the Minho down to the Algarve — but the Algarve wasn’t all there yet. In his brother Sancho II’s reign, the Order of Santiago had already taken Tavira and Cacela, on the eastern side. The rest — Faro, Loulé, Albufeira, the coast out to the cape — was still Muslim land.

The name says it all. Algarve comes from the Arabic al-gharb, “the west”: it was the western end of al-Andalus, the Muslim part of the Iberian Peninsula.

Before: Silves, 1189

To understand the Algarve, we have to go back sixty years, to our king’s grandfather, Sancho I. And here, as in Lisbon in episode 1.3, there’s a crusader who was there and wrote it all down.

In 1189, a fleet of crusaders from northern Europe was on its way to the Holy Land. The author calls himself “Teutonic”; in his account there are men from Bremen, Flemings and a few Englishmen. They stopped in Lisbon, and King Sancho I invited them to a conquest: Silves, the biggest town in the Algarve. The deal was the usual one: the town for the king, everything that could be carried off for the crusaders.

The crusader was impressed. Silves, he writes, was the size of Goslar, a town from his part of the world, but with many more houses — and “much stronger than Lisbon, and ten times richer”.

The siege lasted, by his count, six weeks and three days. The town drew its water from a well protected by a wall with four towers, which they called the Couraça. When the crusaders took it, they blocked the well with stones and earth. From then on, it was down to thirst.

And the crusader doesn’t hide it:

The terms said the inhabitants would leave with only the clothes on their backs. But on the way out some of the crusaders robbed them, and that night some of the inhabitants, “against the agreement”, were tortured to show where they kept their money. In the end the king kept everything — the crusader complains: “the King, taking it all for himself, left us nothing”. The crusaders left in a temper. The king even asked them to help him take another town nearby, which they called Santa Maria de Faraon. They refused. Historians identify it as Faro.

Two years later, in 1191, a great Almohad army from Morocco took Silves back. The Algarve was Muslim again.

1249: Faro

Which brings us to our king. In the spring of 1249, writes Herculano, Afonso III “advanced swiftly into the Algarve”. He brought his uncle, the infante Pedro, the knights of the Order of Santiago, the master of Avis and some nobles.

By March 1249, Faro — Santa Maria de Faro — was already in Christian hands. Herculano knows this from a document: a grant by the king “given at Santa Maria de Faro” that month. Faro town council and the official heritage inventory give the day: 29 March. Soon after, Albufeira, Porches and other places met the same fate. The king left the rest to the military orders and went back to Coimbra.

Now, honesty: historians still argue over who did what at Faro. Some gave the king all the credit; others denied him any part and gave it all to the Order of Santiago. Two historians, Henrique David and Sotto Mayor Pizarro, rejected both extremes: the king did play a part, and Paio Peres Correia’s presence is “very likely”. What’s certain is the month: March 1249.

The problem: Castile wanted the Algarve too

Almost all the Algarve was now in Portuguese hands. But the king of Castile, right next door, thought the Algarve should be his. In 1250 and in 1252 there was war.

And peace was made the way many peace deals were made in those days: with a wedding. Our king would marry Beatriz, the king of Castile’s daughter — still a child. In return, the king of Castile would keep the usufruct of the Algarve — its income, its control — until the first son of that marriage turned seven. After that, the Algarve would go back to Portugal whole.

In mid-May 1253, in Chaves, our king took Beatriz as his wife.

There was just one problem. He was already married.

The countess left behind

Mathilde, Countess of Boulogne — the woman who had given him his title of count in France — was alive. And she didn’t stay quiet: she sent the Pope “energetic” complaints, writes Herculano.

In 1255, Pope Alexander IV ordered the king to appear at the papal court within four months. The king didn’t go, and didn’t give up Beatriz. So the Pope placed him under interdict.

An interdict was a harsh punishment in those days: wherever the king and queen went, divine services stopped — no masses. The Portuguese bishops, in a letter to the Pope in 1262, complained about exactly that: the scandal, and the danger it brought to souls.

Tradition says Mathilde came to Portugal herself to try to get her husband back. Herculano: “Of all this we lack records” — there are no documents.

Mathilde died in 1258 (or early 1259 — the sources don’t agree). In that same 1262 letter, the bishops asked the Pope to lift the interdict, accept the marriage and make the king’s children legitimate, so they could inherit the kingdom. The Pope’s reply isn’t known, writes Herculano — but other documents show the request was granted: the children were treated as legitimate, and Dinis inherited the kingdom.

The grandson closes the deal

With the marriage sorted and the son born — Dinis — the Algarve still had to be settled.

In 1263 peace was made with Castile, and in 1264 the king of Castile renounced almost all the rights he had kept.

One last thread still had to be cut: because of the Algarve, Portugal owed the king of Castile fifty knights whenever he asked for them. Before Badajoz, the king sent Dinis, still a child, to Castile at the head of a military contingent, to ask his grandfather to waive it. The details, says Herculano, come from the chronicles and smell of legend; but the documents show it worked.

On 16 February 1267, in Badajoz, the two kings signed the final agreement:

In March 1268, Afonso III began signing as “king of Portugal and of the Algarve”. Herculano adds: a title his grandfather, Sancho I, had used for a while after Silves, and which his successors “never lost again”.

The rest of the reign

Afonso III reigned for more than ten years after that. Two things worth knowing:

At the end of his life he made peace with the Church, with which he had also been at war. On 17 January 1279, dying, he swore obedience to the Pope and was absolved. He died a month later, on 16 February, before cockcrow. The record of his death already calls him rex Portugalie et Algarbii — king of Portugal and of the Algarve.

The count who came from France to take his brother’s kingdom left it bigger than he found it. And he left his son, Dinis — which is where the next season begins.

Then · 1249

In 1249, with Faro, the map of Portugal is almost complete in the south. Closing it off took another eighteen years of war, diplomacy and a marriage the Pope wouldn't accept.

Now · 2026

At the mouth of the Guadiana, between Vila Real de Santo António and Ayamonte, the river is still the border — the same one the treaty of Badajoz set in 1267, along the course of the Guadiana down to the sea.

Same history. Different point of view.
Author's note

The Algarve was the last piece to join. Today it's the first one foreigners get to know.

Sources — What we actually read to write this episode. How we check → Further reading

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