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Henri Désiré Landru

Henri Désiré Landru is a science 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 Henri Désiré Landru rather than just read about it. In short: Henri Désiré Landru (12 April 1869 – 25 February 1922) (French pronunciation: [ɑ̃ʁi deziʁe lɑ̃dʁy]) was a French serial killer, nicknamed the Bluebeard of Gambais and a prolific marriage fraudster. He is confirmed to have murdered at least ten women and the teenage son of his first victim, primarily targeting lonely war widows whom he met through newspaper advertisements, seduced, defrauded of their assets, and then…

Henri Désiré Landru — main illustration
Henri Désiré Landru — illustration

Key takeaways

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

Reference excerpt

Henri Désiré Landru (12 April 1869 – 25 February 1922) (French pronunciation: [ɑ̃ʁi deziʁe lɑ̃dʁy]) was a French serial killer, nicknamed the Bluebeard of Gambais and a prolific marriage fraudster. He is confirmed to have murdered at least ten women and the teenage son of his first victim, primarily targeting lonely war widows whom he met through newspaper advertisements, seduced, defrauded of their assets, and then killed, disposing of their bodies by burning them in his stove. He committed these crimes between December 1914 and January 1919, first at a house in Vernouillet and later at an isolated villa in Gambais, near Paris. The true number of Landru's victims remains unknown, as police traced correspondence with 283 women, 72 of whom were never found. He is considered one of France's most famous and notorious murderers, whose investigation and trial became a media sensation in the aftermath of World War I. His case inspired Charlie Chaplin's film Monsieur Verdoux. Landru was arrested on 12 April 1919 at an apartment near Paris's Gare du Nord, which he shared with his 24-year-old mistress Fernande Segret. Police eventually concluded that Landru had met or been in romantic correspondence with 283 women during the First World War, meticulously categorized by their potential wealth; seventy-two were never traced. In December 1919, Landru's wife Marie-Catherine, 51, and his eldest son Maurice, 25, were arrested on suspicion of complicity in Landru's thefts from his victims. Both denied any knowledge of Landru's criminal activities. Marie-Catherine was released without charge in July 1920 for health reasons. Maurice was released on the same day because the authorities could not establish his guilt. Landru's trial in November 1921 at Versailles garnered immense public attention, attracting celebrities like Colette and Maurice Chevalier. Although he maintained his innocence and despite the lack of bodies, he was found guilty of eleven murders by a majority verdict on 30 November 1921, largely based on his meticulous notebooks and the circumstantial evidence. He was executed by guillotine on 25 February 1922.

Early life

Henri Landru was born in Paris into a modest but respectable working-class family. His father, Julien Landru, was a furnace stoker and later a factory manager, and his mother, Flore Henriquel, worked from home as a seamstress. Both were devout Catholics. Landru received his education at a Catholic school on the Île Saint-Louis, where he was described as a serious student, serving diligently as an altar boy and later as a sub-deacon. After graduating, he worked briefly in an architect's office. At age 20, while still performing his military service, he began a relationship with his cousin, Marie-Catherine Rémy. When she became pregnant, he married her in Paris on 7 October 1893 to take responsibility and legitimize their first child, Marie, who had been born two years earlier. Landru had begun his obligatory four-year military service in 1889 in Saint-Quentin, eventually rising to deputy quartermaster. After completing his service in 1894, he returned to Paris. The couple went on to have three more children: Maurice (b. 1894), Suzanne (b. 1896), and Charles (b. 1900). During the 1890s, Marie-Catherine worked as a laundress, while Landru struggled to hold down steady employment, working variously as an accountant, furniture salesman, mapmaker, and assistant toymaker. She later described him as a "model husband" in the early years, despite also telling police he was a "skirt chaser" from the outset. Some accounts suggest his turn to crime began after an employer at an architectural firm where Landru and colleagues had pooled savings allegedly embezzled the funds and fled to America; Landru, wanting to recover his lost funds, supposedly turned to fraud. Biographer Dennis Bardens disputed this, arguing Landru likely had few savings and may have defaulted on a loan from the employer instead.

Criminal career

Landru's descent into serious crime coincided with his ambition to become an inventor. In 1898, he designed a primitive motorbike, "The Landru," then defrauded investors for a non-existent factory. He pursued other unsuccessful ventures, including a plan for a suburban railway and an automated toy. Increasingly, he resorted to fraud, spending years on the run and seeing little of his family. His first known conviction was for fraud on 21 July 1904, resulting in a two-year sentence served in Fresnes prison, after he was arrested following an attempted bank fraud and a suspicious, possibly feigned suicide attempt while in custody at La Santé Prison. Dr. Charles Vallon, a prominent criminal psychiatrist who examined him then, concluded Landru was "on the frontiers of madness" but legally sane and responsible for his actions, though he warned Marie-Catherine about his potential danger. Between 1902 and 1914, Landru cycled in and out of prison for various minor frauds. In 1909, he attempted to swindle a wealthy widow in Lille, posing as a single businessman. He persuaded her to hand over her savings (reported as 20,000 francs in one account) but was caught trying to cash her investment certificates and sentenced to three years in Loos prison. Some speculate this experience led him to realize that eliminating victims would prevent prosecution, as he allegedly learned the lesson "no body, no crime." While he was imprisoned, his mother died in 1909. In April 1912, shortly after Landru's release, his father, Julien, hanged himself from a tree in the Bois de Boulogne, apparently out of shame and despair over his son's criminal life. Marie-Catherine later claimed Landru stole the 12,000 francs Julien had specifically left for her and the children. In the winter of 1913–14, Landru conducted his most successful pre-war fraud, collecting 35,600 francs from multiple investors for another fictitious automobile factory. He fled with this money and much of his inheritance just before police arrived to arrest him in April 1914. In late July 1914, he was tried in absentia, convicted for his sixth time, and sentenced to four years' hard labour followed by lifelong deportation to New Caledonia. By using various aliases and constantly moving, Landru evaded this sentence and remained a fugitive as World War I began.

… excerpt ends here. Continue reading the full article.

Illustrations

Henri Désiré Landru illustration
Henri Désiré Landru: Henri Désiré Landru during his military service (circa 1889–1893)
Henri Désiré Landru during his military service (circa 1889–1893)
Henri Désiré Landru: Landru Police Mugshot 22 December 1909
Landru Police Mugshot 22 December 1909
Henri Désiré Landru illustration
Henri Désiré Landru illustration

Worked examples

Example 1 — a first encounter with Henri Désiré Landru

Start with the simplest possible case. Write down what Henri Désiré Landru claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Henri Désiré Landru 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 Henri Désiré Landru 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 Henri Désiré Landru

In research
Henri Désiré Landru appears in science 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 Henri Désiré Landru 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
Henri Désiré Landru is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1869 births, 1922 deaths, 19th-century French inventors, so understanding it makes those chapters shorter.
In everyday life
Look for Henri Désiré Landru 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 Henri Désiré Landru in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Henri Désiré Landru 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 Henri Désiré Landru out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Henri Désiré Landru in simple terms?

Henri Désiré Landru (12 April 1869 – 25 February 1922) (French pronunciation: [ɑ̃ʁi deziʁe lɑ̃dʁy]) was a French serial killer, nicknamed the Bluebeard of Gambais and a prolific marriage fraudster. He is confirmed to have murdered at least ten women and the teenage son of his first victim, primaril…

Why does Henri Désiré Landru matter?

Because it connects several science 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 Henri Désiré Landru?

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 Henri Désiré Landru.

Tags

  • 1869 births
  • 1922 deaths
  • 19th-century French inventors
  • 19th-century French military personnel
  • 19th-century Roman Catholics
  • 20th-century French inventors
  • 20th-century French murderers
  • 20th-century Roman Catholics
  • Burials at the Cimetière des Gonards
  • Criminals from Paris
  • Executed French serial killers
  • French Roman Catholics

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