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John Dalberg-Acton, 1st Baron Acton

John Emerich Edward Dalberg-Acton, 1st Baron Acton, 13th Marquess of Groppoli, KCVO (10 January 1834 – 19 June 1902), better known as Lord Acton, was an English Catholic historian, Liberal politician, and writer. A strong advocate for individual liberty, Acton is best known for his observation on the dangers of concentrated authority. In an 1887 letter to an Anglican bishop, he famously wrote, 'Power tends to corrupt, and absolute power corrupts absolutely',[1] underscoring his belief that unchecked power poses the greatest threat to human freedom.

Also recorded as Lord Acton · John Emerich Edward Dalberg-Acton, 1st Baron Acton · Sir John Dalberg-Acton, 8th Baronet · John Emerich Edward Dalberg-Acton

John Dalberg-Acton, 1st Baron Acton

Picture of John Dalberg-Acton, 1st Baron Acton

Allen Co. · Letters of Lord Acton to Mary Gladstone · Public domain

Born
1834. · Naples.
Nationality
United Kingdom of Great Britain and Ireland.
Occupation
politician, historian, pedagogue, writer, university teacher, journalist, philosopher and lord.
Fields
history.
Education
St Mary's College, Oscott and Ludwig-Maximilians-Universität München.
Teachers
Ignaz von Döllinger.
Known for
Lectures on Modern History.
Honours
Knight Commander of the Royal Victorian Order and Royal Victorian Order.
Languages
English.

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John Emerich Edward Dalberg-Acton, 1st Baron Acton, 13th Marquess of Groppoli, KCVO (10 January 1834 – 19 June 1902), better known as Lord Acton, was an English Catholic historian, Liberal politician, and writer. A strong advocate for individual liberty, Acton is best known for his observation on the dangers of concentrated authority. In an 1887 letter to an Anglican bishop, he famously wrote, 'Power tends to corrupt, and absolute power corrupts absolutely',[1] underscoring his belief that unchecked power poses the greatest threat to human freedom.

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John Dalberg-Acton, 1st Baron Acton (1834–1902) was a British historian, journalist and lord, among other activities. Born in Naples, the historian died in Tegernsee. John Dalberg-Acton, 1st Baron Acton was also known as Lord Acton.

John Dalberg-Acton, 1st Baron Acton studied at Ludwig-Maximilians-Universität München and St Mary's College, Oscott. The historian worked for University of Cambridge and University of Oxford and was a member of Bavarian Academy of Sciences and Humanities. John Dalberg-Acton, 1st Baron Acton held the position of Regius Professor of History, Cambridge University and worked in London. The historian was active in history.

Works include Lectures on Modern History. Languages used include English. John Dalberg-Acton, 1st Baron Acton received Knight Commander of the Royal Victorian Order and Royal Victorian Order.

Composed from admitted, traceable facts · 26 September 2026

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wikidata · Q311778 · wikipedia · John Dalberg-Acton, 1st Baron Acton

In this article

  1. 01Biography
  2. 02Writing and publications
  3. 03Teaching
  4. 04Reception, influence and legacy
  5. 05Archives and collections
  6. 06Notes, references and evidence

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