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Sidonie Vaillant

1883 – 1966

French anarchist

Anarchist
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About Sidonie Vaillant

Lived 1883 – 1966 (aged 83). Sidonie Vaillant was a French anarchist.

Sidonie Vaillant (9 August 1883 – 2 October 1966) was a French anarchist activist. She is best known for being the daughter of Auguste Vaillant (1861–1894), an anarchist responsible for the National Assembly bombing. Although the attack killed no one, the family's extreme poverty and Sidonie's young age at the time of the incident stirred part of French society to call on Sadi Carnot to pardon Vaillant. She became involved in writing texts to plead for her father's clemency, including a letter to Cécile Carnot, but to no avail.

Despite the offers from Anne de Rochechouart de Mortemart, Paule Mink and Marie-Rose Astié de Valsayre to care for the young Vaillant, Auguste chose instead to entrust her to Sébastien Faure. He was executed shortly afterward. The Italian companion Sante Caserio assassinated Sadi Carnot in Lyon as an act of revenge for his refusal to respond to Sidonie Vaillant.

She then continued her activism and died in 1966 in Nantes.

Biography Sidonie Vaillant was born on 9 August 1883, in Clichy. Her mother was named Virginie Viol, and her father, Auguste Vaillant, was first a socialist and later an anarchist activist. The family was very poor, and her father had to support them with his wages. During the Ère des attentats (1892–1894), he found work as a leather worker earning twenty francs a week. In response to this situation, possibly with the help of other anarchists, he carried out the National Assembly bombing on 9 December 1893.

After her father's arrest, the French state enacted the lois scélérates ('villainous laws') and launched a repression in January and February 1894. Her father was put on trial and sentenced to death. She learned of the news upon waking, as she had been asleep when he was condemned. The fact that her father had killed no one, targeted generally unpopular deputies, and only slightly injured his victims sparked a sense of support among the working-class population of Paris.

On 17 January, police raided and arrested anarchist restaurateur Constant Martin, who had been sheltering her for several days – taking advantage of her being away shopping with her adoptive mother.

Sidonie Vaillant's fate, as a young and impoverished girl, moved many people who were touched by her situation. The Duchess of Uzès, blamed Faure for this decision and harbored deep resentment toward him thereafter.

In 1896, she was monitored by the police, who observed her distributing anarchist newspapers such as Les Temps nouveaux for free, along with other children of anarchists. Vaillant attended the funeral of Louise Michel on 22 January 1905.

She married Joseph Saint-Ange de Fornier on 10 November 1913, in Paris. Vaillant died on 2 October 1966, in Nantes.

Legacy and influence Sadi Carnot's refusal to respond to her letter was one of the motives that drove Sante Caserio to assassinate him, which he did by stabbing him to death. Tardif describes this influence as follows:

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Important facts

Birth century
Occupation
Anarchist
Nationality
Education
La Ruche

People in Sidonie Vaillant's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Sidonie Vaillant's

Frequently asked questions

Who was Sidonie Vaillant?

French anarchist (1883-1966)

When was Sidonie Vaillant born?

Sidonie Vaillant was born on 9 August 1883 in Clichy.

When did Sidonie Vaillant die?

Sidonie Vaillant died on 2 October 1966 in Nantes.

What was Sidonie Vaillant's occupation?

Sidonie Vaillant was an anarchist.

What nationality was Sidonie Vaillant?

Sidonie Vaillant was French.

Sources & further reading

· Wikipedia: Sidonie Vaillant

· Wikidata: Q133572597

· DBpedia: Sidonie Vaillant

Cite this page

APA: Biography.guide. (2026). Sidonie Vaillant. https://biography.guide/sidonie-vaillant/

MLA: "Sidonie Vaillant." Biography.guide, https://biography.guide/sidonie-vaillant/.

Chicago: "Sidonie Vaillant." Biography.guide. https://biography.guide/sidonie-vaillant/.

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