Baron John Emerich Edward Dalberg Acton Acton

Born in Naples in 1834 and widely known as Lord Acton, he was an English Catholic historian, writer, and Liberal politician. He is remembered above all for linking history with moral judgment and for his lifelong concern with liberty and the dangers of concentrated power.

Acton studied under the noted Catholic scholar Ignaz von Döllinger and developed a deep interest in church history, political thought, and the ethical responsibilities of rulers. Although he never completed the large historical works he planned, his essays, lectures, and correspondence made him one of the most influential historical minds of his time.

Later in life he became Regius Professor of Modern History at Cambridge. His reputation has lasted not because of a long shelf of books, but because of the force of his ideas: that freedom matters, that power must be watched carefully, and that historians should not excuse wrongdoing simply because it was committed by the powerful.