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Mary Helen Agnes Allies

1852 – 1927

English author

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About Mary Helen Agnes Allies

Lived 1852 – 1927 (aged 74). Mary Helen Agnes Allies was a British biographer, writer, historian and translator.

Mary Helen Agnes Allies (2 February 1852 – 27 January 1927) was an English Catholic historian, writer and translator.

Life Allies was born on 2 February 1852. She was the eldest daughter of Thomas William Allies and Eliza (born Hall) Allies. Her father had been a fellow at Oxford and he had risen to be the chaplain to the Bishop of London. He had however made a life-changing move to Roman Catholicism in 1850.

Her father was secretary of the Catholic Poor School Committee. She had five siblings and they lived in St John's Wood in London. The family moved to Portman Square and Mary boarded at Holy Child College, a Catholic school in St Leonards-on-Sea operated by the Society of the Holy Child Jesus (later merged into their Mayfield school), and subsequently the Visitation Convent Paris. Allies gave a lot of respect to her father and in time she would write his biography. She served as his secretary from 1872 to 1890. She said that she fed "on the marrow of his mind" when she was the only child living at home. Her first work, The Life of Pius VII, was published in 1875. It was well researched, but strongly pro-Catholic. The book looked at a supreme pope in conflict with the Napoleonic French state. Pius VII's conflict included him being arrested. Allies' biography was based on sources in four languages. This, and the shorter version published in 1897, as of 2004 was the only available biography of Pius VII in English and is therefore considered a standard work. History of the Church of England, 2 vols. (1892-1897) -a partisan view of the Anglican church before 1603. writing articles for journals such as Catholic World and Catholic quarterly'; and caring for her brother's children. She died at her home in St John's Wood in 1927.

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Important facts

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Frequently asked questions

Who was Mary Helen Agnes Allies?

English author

When was Mary Helen Agnes Allies born?

Mary Helen Agnes Allies was born on 2 February 1852.

When did Mary Helen Agnes Allies die?

Mary Helen Agnes Allies died on 27 January 1927 in St John's Wood.

What was Mary Helen Agnes Allies's occupation?

Mary Helen Agnes Allies was a biographer, writer, historian and translator.

What nationality was Mary Helen Agnes Allies?

Mary Helen Agnes Allies was British.

Sources & further reading

· Wikipedia: Mary Helen Agnes Allies

· Wikidata: Q15944986

· DBpedia: Mary Allies

Cite this page

APA: Biography.guide. (2026). Mary Helen Agnes Allies. https://biography.guide/mary-helen-agnes-allies/

MLA: "Mary Helen Agnes Allies." Biography.guide, https://biography.guide/mary-helen-agnes-allies/.

Chicago: "Mary Helen Agnes Allies." Biography.guide. https://biography.guide/mary-helen-agnes-allies/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

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