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Slaves' Prison

Slaves' Prison 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 Slaves' Prison rather than just read about it. In short: The Slaves' Prison (Italian: Bagni degli Schiavi, Maltese: Il-Ħabs tal-Iskjavi) officially known as the Grand Prison (Italian: Gran Prigione; Maltese: il-Ħabs il-Kbir) and colloquially as the bagnio, was a prison in Valletta, Malta. It was established in the late 16th century, and remained in use as a prison throughout the 17th and 18th centuries.

Slaves' Prison — main illustration
Slaves' Prison — illustration

Key takeaways

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

Reference excerpt

The Slaves' Prison (Italian: Bagni degli Schiavi, Maltese: Il-Ħabs tal-Iskjavi) officially known as the Grand Prison (Italian: Gran Prigione; Maltese: il-Ħabs il-Kbir) and colloquially as the bagnio, was a prison in Valletta, Malta. It was established in the late 16th century, and remained in use as a prison throughout the 17th and 18th centuries. It was subsequently used as a naval hospital, a school and an examination hall. It was bombed in World War II, and the ruins were demolished to make way for a block of flats.

History The Gran Prigione (Grand Prison) was established around 1585 during the magistracy of Hugues Loubenx de Verdalle (1582–95). It was probably designed by the architect Girolamo Cassar. The building served as the Order of St. John's main prison, as well as a compound in which slaves were locked up at night. It could house around 900 inmates. After 1615, the prison was supplied by water from the Wignacourt Aqueduct. A Turkish slave who had been a hydrologist in Constantinople reportedly helped in the construction of the aqueduct, and in recognition of his work he was given his freedom and the prison became one of the first buildings in Valletta to be supplied by running water.

By 1631, part of the building was used as the Infermeria delle Schiavi, a hospital where ill land-bound slaves were treated. Sick galley slaves were not treated there but at the Great Magazine Ward of the nearby Sacra Infermeria. In the Conspiracy of the Slaves of 1749, slaves at the Grandmaster's Palace planned to revolt, free the other slaves from the Slaves' Prison, and take over Fort Saint Elmo and the rest of Valletta. After the plot was discovered and brutally suppressed, a decree was issued stating that all slaves were to be locked up at the prison at night. From 1804 to 1819, the prison was used as a temporary naval hospital with 50 beds. After the 1806 Birgu polverista explosion, the government provided part of the prison as a store to the wine merchant Mr. Woodhouse, who had lost large quantities of wine in the disaster. In 1824 part of the building was demolished, to make way for a planned Protestant church which did not materialise, only to later be rebuilt. Later on in the 19th century, the building housed an elementary school, which was known as l-iskola tal-ħabs (school of the prison). It eventually became an examination hall before being closed down in 1940. The building was included on the Antiquities List of 1925. The prison was bombed in World War II, and the ruins were subsequently demolished. A large block of flats was built on its site in the 1950s.

The building

The prison was a large three-story building occupying an entire city block close to the Lower Barrakka Gardens. A mid-19th century report describes it as:

a lofty quadrangular building, standing on the brow of a hill fronting the Grand Harbour. It is isolated, being bound by Strada St Ursula in front, the ramparts behind, Strade St Christophoro and Pozzi on either side. It consists of three stories, and occupies a nearby equilateral space about 400 paces in circumference. Other slaves' prisons were located in Birgu and Senglea, and these were both demolished in the 20th century like the Valletta prison.

Life in the prison

The prison contained a tavern, from which slaves could buy food and drink, a mosque for Muslim slaves, and chapels dedicated to St. John the Baptist and the Holy Cross for Christian prisoners. Parts of the prison were accessible to the public, and some slaves operated barber shops and other establishments from within the prison. A court case dated 1779 describes the situation within the prison as:

nobody could claim to have a friend, on the contrary, all are enemies of each other, and traitors each and every one. The prison was run by a Prodomo, who served as the governor and was a knight of the Order of St. John. Agozzini had direct control over the prisoners, dividing them into work gangs for the galleys, while carcerieri were responsible for the register of prisoners and probably also acted as guards.

Further reading Lanfranco, Guido (2007). "Xoghol Tal-Iskjavi Fost il-Maltin" (PDF). Kappelli Maltin. Archived from the original (PDF) on 15 April 2016. Borg-Muscat, David (2001). Henry Frendo (ed.). "Prison Life in Malta in the 18th Century: Valletta's Gran Prigione" (PDF). Storja. Malta University Historical Society: 42–51. Prison closed entirely in 1853 Cassar, Paul (July 1968). "A medical service for slaves in Malta during the rule of the Order of St. John of Jerusalem". Medical History. 12 (3). Cambridge University Press: 270–277. doi:10.1017/S0025727300013314. PMC 1033829. PMID 4875614.

References

Illustrations

Slaves' Prison illustration
Slaves' Prison: The building as depicted in 1664 from the site of the Nuova Fontana, generally known as the Fountain of Neptune
The building as depicted in 1664 from the site of the Nuova Fontana, generally known as the Fountain of Neptune
Slaves' Prison: View of Valletta from the Grand Harbour. The Slaves' Prison stood on the site now occupied by the large block of flats.
View of Valletta from the Grand Harbour. The Slaves' Prison stood on the site now occupied by the large block of flats.
Slaves' Prison: Courtyard of flats
Courtyard of flats
Slaves' Prison: Block of flats
Block of flats

Worked examples

Example 1 — a first encounter with Slaves' Prison

Start with the simplest possible case. Write down what Slaves' Prison 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 Slaves' Prison 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 Slaves' Prison 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 Slaves' Prison

In research
Slaves' Prison 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 Slaves' Prison 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
Slaves' Prison is common in secondary-school and first-year university syllabi. It links to neighbouring topics Buildings and structures completed in 1585, Buildings and structures in Malta destroyed during World War II, Buildings and structures in Valletta, so understanding it makes those chapters shorter.
In everyday life
Look for Slaves' Prison 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 Slaves' Prison in 20 minutes

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

Frequently asked questions

What is Slaves' Prison in simple terms?

The Slaves' Prison (Italian: Bagni degli Schiavi, Maltese: Il-Ħabs tal-Iskjavi) officially known as the Grand Prison (Italian: Gran Prigione; Maltese: il-Ħabs il-Kbir) and colloquially as the bagnio, was a prison in Valletta, Malta. It was established in the late 16th century, and remained in use a…

Why does Slaves' Prison 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 Slaves' Prison?

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 Slaves' Prison.

Tags

  • Buildings and structures completed in 1585
  • Buildings and structures in Malta destroyed during World War II
  • Buildings and structures in Valletta
  • Defunct hospitals in Malta
  • Defunct prisons in Malta
  • Defunct schools in Malta
  • Islam in Malta
  • Slave cabins and quarters
  • Slavery in Malta

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