engineering

Hall of Realms

Hall of Realms is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Hall of Realms rather than just read about it. In short: The Salón de Reinos (translated as "Hall of the Kingdoms" or "Hall of Realms") or salón grande ("great hall") is a 17th-century building in Madrid, originally a wing of the Buen Retiro Palace. The Salón de Reinos and the Casón del Buen Retiro are the only survivors of the original grand scheme of the palace.

Key takeaways

Hall of Realms belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Hall of Realms to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Hall of Realms from memory before moving on to harder problems.

Reference excerpt

The Salón de Reinos (translated as "Hall of the Kingdoms" or "Hall of Realms") or salón grande ("great hall") is a 17th-century building in Madrid, originally a wing of the Buen Retiro Palace. The Salón de Reinos and the Casón del Buen Retiro are the only survivors of the original grand scheme of the palace. Built between 1630 and 1635, the Hall of Realms housed the largest paintings in the royal collection, now all in the Museo del Prado. It is named after its paintings of the coats of arms of the 24 kingdoms which formed the Kingdom of Spain at the time of Philip IV of Spain. The building served as the Museo del Ejército from 1841 to 2010 when the military collections were put on display at the Alcázar of Toledo. The Prado Museum acquired the vacant building to display part of its collections and made its renovation the subject of an architectural competition. The brief was to redesign the space as part of the campus of the art museum for its 200th anniversary. It was won in 2016 by a scheme from the British firm Foster and Partners and the Spanish firm Rubio Arquitectura.

Decoration of the room Originally intended as a place from which the king could watch and assist in theatrical productions in the courtyard, the Salón de Reinos was turned into a throne room when it was decided to turn Buen Retiro into a full palace. It was still used for spectacles and soirees, so a balcony was added so that festivities could be viewed from above, but as a throne room it had to impress ambassadors and other distinguished members of the courts of Europe who visited the palace. This meant the room's decoration was the most sumptuous in the whole palace, well-illuminated by several windows between jasper tables and silver lions and with a ceiling covered in grotesques. There were also wall paintings full of political symbolism with the ultimate aim of glorifying Philip IV. The designer of the room's decorative programme is unknown, though ultimate responsibility lay in the hands of the conde duque de Olivares himself, along with Jerónimo de Villanueva (who gave the lions and effected the payments) and with the intellectual advice of Francisco de Rioja and of the painters closest to Philip and Olivares, Juan Bautista Maíno and Velázquez. The Salón de Reinos is rectangular in plan, with narrow doors on the two longer sides. On its north and south sides hung twelve paintings (one now lost) on the theme of the major battles won by the armies of Philip IV in the early years of his reign. Between these paintings, and above the Salón's windows, were ten paintings by Zurbarán showing the labours of Hercules, comparing the exploits of the demi-god Hercules (then considered as the ancestor of the House of Habsburg) with those of the king. The battle paintings juxtaposed examples by artists of the older generation such as Vicente Carducho or Eugenio Cajés (who had both served Philip III of Spain) with ones by younger artists trained in naturalism such as Juan Bautista Maíno, Zurbarán (summoned from Seville for this very commission), Jusepe Leonardo, Félix Castelo (who did his first major work there), Antonio de Pereda and especially Velázquez, Philip IV's favourite. At the east and west ends were portraits by Velázquez of the royal family. The series was made up of equestrian portraits of Philip III and his wife Margaret of Austria (both on the west wall) and equestrian portraits of Philip IV and his wife Elisabeth of France either side their son and heir Balthasar Charles (all three on the east wall). These five paintings' distribution and staggered positioning exemplified the concepts of hereditary monarchy and dynastic continuity. Based on the titles held by Philip IV, the hall also contained shields showing the coats of arms of the twenty-four kingdoms and realms that made up his monarchy: Aragon, Archduchy of Austria, Lordship of Biscay, Duchy of Burgundy, Duchy of Brabant, Castile and León, Principality of Catalonia, Córdoba, County of Flanders, Galicia, Granada, Jaén, Mexico, Duchy of Milan, Murcia, Naples, Navarre, Peru, Portugal, Sardinia, Seville, Sicily, Toledo and Valencia (Philip IV also held the titles of Count of Habsburg, Count of Tyrol, and Lord of Molina, among others).

Paintings

The layout of the portraits and battle paintings in the Salón, based on the reconstruction produced by Jose Alvarez Lopera, which is in turn based on the Silva topográfica by Manuel de Gallegos and the 1701 inventory, is as follows:

West wall (main entrance) Three works by Velázquez:

Equestrian Portrait of Philip IV Equestrian Portrait of Elisabeth of France Equestrian Portrait of Prince Balthasar Charles

East wall (behind the throne) Equestrian Portrait of Philip III, by Velázquez and workshop Equestrian Portrait of Margarita of Austria, by Velázquez

North wall The expulsion of the Dutchmen from the island of San Martin by the Marquis of Cadreita, by Francisco de Zurbarán (lost). The capture of Rheinfelden by Vicente Carducho. Oil on canvas (297 x 357 cm), Museo Nacional del Prado. The Relief of Brisach by Jusepe Leonardo. Oil on canvas (304 x 360 cm), Museo Nacional del Prado. The relief of the Plaza de Constanza, Vicente Carducho. Oil on canvas (297 x 374 cm), Museo Nacional del Prado. The recovery of the island of Puerto Rico by Don Juan de Haro, Eugenio Cajés. Oil on canvas (290 x 344 cm), Museo Nacional del Prado. The recovery of the island of San Cristobal by Don Frederic of Toledo, Felix Castelo. Oil on canvas (297 x 311 cm), Museo Nacional del Prado.

South wall The Recovery of Bahia by Juan Bautista Maíno. Oil on canvas (290 x 370 cm), Museo Nacional del Prado. The Relief of Genoa by the second Marquis of Santa Cruz, by Antonio de Pereda y Salgado. Oil on canvas (290 x 370 cm), Museo Nacional del Prado. The victory at Fleurus, by Vicente Carducho. Oil on canvas (297 x 365 cm), Museo Nacional del Prado. The surrender of Juliers by Jusepe Leonardo. Oil on canvas (307 x 381 cm), Museo Nacional del Prado. The Surrender of Breda, by Diego Velázquez. Oil on canvas (307 x 367 cm), Museo Nacional del Prado. The defense of Cadiz against the English, by Zurbarán. Oil on canvas (302 x 323 cm). Museo Nacional del Prado.

Trials of Hercules Over the windows were paintings of the trials of Hercules by Zurbarán, all 130 cm x 160 cm, all oil on canvas, all now in the Prado:

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Hall of Realms

Start with the simplest possible case. Write down what Hall of Realms claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Hall of Realms before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Hall of Realms ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Hall of Realms

In research: Hall of Realms appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Hall of Realms in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Hall of Realms is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1635 establishments in Spain, Art museums and galleries in Madrid, Bien de Interés Cultural landmarks in Madrid, so understanding it makes those chapters shorter.
In everyday life: Look for Hall of Realms outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Hall of Realms in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hall of Realms means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Hall of Realms out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hall of Realms in simple terms?

Why does Hall of Realms matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Hall of Realms?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Hall of Realms.