If Islamic art in Spain means the Mosque of Córdoba and the Alhambra of Granada to you, you are missing the piece in between. It is in Zaragoza, it is called the Aljafería Palace, and it is the only 11th-century royal residence still standing anywhere on the peninsula.
I got there on a July afternoon. From outside the Aljafería looks like any castle: brick walls, crenellated cylindrical towers, a dry moat. Then you go in, and the building changes its nature. If your Spanish trip carries on eastwards, the site also has what to see in Girona, and for the contemporary in Madrid the 9 works at the Reina Sofía.
Why should an 11th-century Arab palace interest you more than a 14th-century one?
A «palace of joy» in the 11th century
The Aljafería was built between 1065 and 1081 for al-Muqtadir, ruler of the taifa of Zaragoza. The building takes its name from his: Abu Ja’far, hence Qasr al-Ja’fariyah.
A word on the context, because without it the building makes no sense. In 1031 the caliphate of Córdoba broke apart into some twenty independent kingdoms, the taifas: small, wealthy and at war with one another. Zaragoza was among the most prosperous. The palace al-Muqtadir had built outside the city walls was not a fortress but a pleasure residence, and it was he who called it Qasr al-Surur, palace of joy; to its throne room, the Majlis al-Dhahab, the Golden Hall, he dedicated verses of his own.
Here is what makes the Aljafería a singular case. Almost nothing survives of those twenty refined courts: the Almoravids wiped them out one after another between the end of the 11th century and the early 12th, and Zaragoza fell in 1110. This is the only survivor on that scale, and because it sits chronologically between the great mosque of Córdoba, of the 10th century, and the Alhambra, of the 14th, it is the document that explains how you get from one to the other.
The arches that lead to Granada
At the Aljafería the thing to look at is the portico closing the courtyard on the north side, and above all its arches.
They are not plain arches. They are mixtilinear and polylobed arches that intersect one another, drawing a continuous net in which the single arch stops reading as an element and becomes one mesh of a fabric. They rest on slender little columns of marble and alabaster topped by small capitals, and the contrast between those thin supports and the decorated mass they carry is deliberate: the effect is a wall that seems to rest on air.
If you have seen the mosque of Córdoba you will recognise where the idea of interlacing arches comes from, since it appears there in the 10th-century maqsura. If you have seen the Alhambra you will recognise where it ends up, in surfaces where no element can be separated from the overall design any more. The Aljafería is the passage between them, and it is the only place where you can see it at full size.
Far less survives on the walls than once stood there: much of the stucco decoration was stripped in the 19th century or lost, and what you see in some rooms is a reconstruction declared as such. It is worth reading the labels, because here the line between original and restoration is drawn clearly and admitted.
The oratory, a private mosque indoors
A small door opens in one corner of the courtyard, and behind it is the thing that struck me most: the oratory, the ruler’s private mosque, with its mihrab, the niche marking the direction of Mecca. The plan is square with chamfered corners, which gives it the look of an octagon.
It is small, it sits inside a palace, and its horseshoe entrance arch is decorated with a density found nowhere else in the building. A band of Kufic inscriptions runs above it, and higher up a gallery of paired windows gives the room all the light it has. Looking at it you understand something plans do not convey: the room for prayer stood inside the apartments, a few steps from the throne room, and was not a separate building.
One curiosity: the oratory went on existing inside a Christian palace for almost nine hundred years, outliving kings of Aragon, the Inquisition and army barracks. It was not demolished: it was absorbed, used as a storeroom, walled up and forgotten, and that is why it is still there.
The floor above: the kings of Aragon build in Arabic
In 1118 Alfonso I the Battler took Zaragoza and the palace became the residence of the kings of Aragon. How the story continues is the most interesting thing the Aljafería has to tell.
The new owners did not demolish it and did not rebuild elsewhere: they settled on top. In 1336 Peter IV the Ceremonious added a whole floor and the church of San Martín, and he did it in the same decorative language as the Muslim builders, that is with local craftsmen working brick, wood and stucco in an Islamic tradition for a Christian patron.
This is Mudéjar, and it is why the Aljafería is on the World Heritage list. Watch the date, which gets reported wrongly again and again: the UNESCO inscription dates from 1986 and covers the four Mudéjar monuments of Teruel; the Aljafería came in with the 2001 extension, which took the entry to ten components and changed its name to «Mudéjar Architecture of Aragon».
The ceiling dated 1492
On the floor of the Aragonese kings you reach the Throne Room of the Catholic Monarchs, built between 1488 and 1495, and there it is worth putting your head back and staying a while.
The ceiling is an artesonado, a carved, gilded and painted wooden coffered ceiling, with pine cones hanging from the coffers and a geometric interlace covering the whole surface. This too is Mudéjar: an Islamic motif over a Christian hall of state, commissioned by the monarchs who were completing the Reconquista.
A Latin inscription runs along the frieze naming Ferdinand and Isabella and closing with the year: MCCCCLXXXXII, that is 1492. I read it with my neck craned, and it is not just any date: it is the year Granada fell, the Jews were expelled from Spain and Columbus first sailed. A ceiling in an Islamic tradition, in an Arab palace, signed with that year, says more about the age than any explanatory panel.
The Torre del Trovador, the Inquisition and Verdi
The square tower you see from outside, detached from the rest, is the Torre del Trovador, and it is the oldest part of the complex: late 9th century, nearly two hundred years older than al-Muqtadir’s palace.
Its name is more recent than it sounds, and it runs the opposite way from what you would assume. The tower did not give the opera its name: the opera gave the tower its name. In 1836 Antonio García Gutiérrez published the romantic drama El trovador, set here, and in 1853 Verdi drew Il trovatore from it. The tower used to be called something else; it is called this because a playwright chose it as a set.
Its real history is bleaker. From 1486 the palace housed the tribunal of the Inquisition, which stayed until 1706, and the tower served as a prison into the 19th century. On its walls prisoners scratched hundreds of marks over four centuries: crosses, figures, writing, geometric designs traced with a compass. They have been studied as a corpus since the 1960s, and they remain what they are, the way locked-up men filled the time.
What I photographed is an incised circle with a six-pointed star inside it, surrounded by fainter marks. What it meant to whoever cut it I do not know, and be wary of anyone who tells you with confidence: the six-pointed star is at once a Jewish symbol, a seal of Solomon in the Islamic tradition, and the figure that comes out by itself when you step a compass round its own circle.
Please note: the tower is not part of the ordinary route. It can only be seen on the special guided tour Aljafería Oculta, which in 2025 cost 12 euros, ran on Saturdays at 12.00 in July, August and September and was limited to eight people, with booking required. It is a narrow route with stairs, not advised for under-twelves or for anyone with limited mobility. Check the website before counting on it.
Today it is a parliament, and you can tell
After the Inquisition the palace became barracks from 1772, and that is when the worst of it began: heavy alterations, military additions, damage from the Napoleonic sieges of Zaragoza. Recovery started after the war and reached its decisive campaign between 1985 and 1998.
Since 1987 the Aljafería has been the seat of the Cortes de Aragón, the regional parliament. That is not an administrative footnote: it means you enter a building still in use, with security at the door, wings closed to the public and a visiting route that also depends on the institutional business of the day. It also means the monument is maintained because it is needed, which explains the state it is in.
The Goya exhibition, until the end of 2026
While the Museum of Zaragoza is being refurbished, part of its collection is on show here, in the exhibition «Goya. Del Museo al Palacio», laid out across the Throne Room, the Peter IV room and the Salas de los Pasos Perdidos. Local sources speak of 62 works and a closing date of 31 December 2026; the Cortes page announces the exhibition without publishing the dates, so check before you go.
It is worth knowing for a practical reason: if you care about Goya and you are passing through Zaragoza in this period, the place to see him is not the closed museum, it is the palace.
Practical information
Checked on 8 August 2026 on the official site of the Cortes de Aragón. Prices and hours change, and here they also change with parliamentary business: check them again before you travel.
Tickets. Entry costs 7 euros. The guided tour run by the Cortes costs 9 euros and includes entry. Reduced rates exist for pensioners, students, youth card holders and tourist bus passengers, and the site lists the categories without publishing the amounts: bring your documents. Opening hours. From 1 April to 31 October it opens daily 10.00-18.00. From 1 November to 31 March it opens Monday to Saturday 10.00-18.00 and Sunday 10.00-14.00. The ticket desk closes 45 minutes earlier. Closures. The palace is closed on 1 January, on 23 April, which in Aragon is the regional holiday of Saint George, and on 25 December. Free entry. Several local sources give free entry on the first Sunday of each month and on the afternoon of the first Monday. The Cortes site lists a «free entry» option but not the days: if you are counting on it, confirm by phone. The special tour. Aljafería Oculta is the guided visit that goes into the Torre del Trovador and the spaces normally closed to the public. In 2025 it cost 12 euros and ran on Saturdays at 12.00 from July to September; the group is eight people at most and booking is required. Getting there. The palace stands a little over a kilometre east of Zaragoza-Delicias, the high-speed station, about twenty minutes on foot or on bus line 51, Avenida Madrid stop. From the old town and the basilica of El Pilar it is a good twenty minutes’ walk. How long you need. An hour and a half covers the ordinary route. With the Goya exhibition allow two hours, with Aljafería Oculta half a day. An honest warning. The Aljafería is not the Alhambra and does not resemble it. It is far smaller, it has come down to us far more damaged, and part of what you see is reconstructed. It is worth the trip for what it is, a unique document, not for a promise of splendour it cannot keep.
If you are building a Spanish itinerary, the natural next piece is Girona, which tells of another medieval coexistence, that of the best preserved Jewish quarter in Europe.
