Søren Kierkegaard: A Detailed Biography

Søren Aabye Kierkegaard (1813–1855) was a Danish philosopher, theologian, poet, and cultural critic widely regarded as the father of existentialism. He explored themes of anxiety, despair, faith, individuality, and the relationship between the individual and God through a series of pseudonymous and signed works. His writings challenged systematic philosophy (especially Hegel) and institutional Christianity, emphasizing subjective truth and the “leap of faith.” This biography covers his Copenhagen upbringing, broken engagement, philosophical output, bitter church conflict, and early death, as documented by the Stanford Encyclopedia of Philosophy, the Encyclopædia Britannica, the Søren Kierkegaard Research Center, and the Guardian.

Early Life in Copenhagen

Strict Pietist Upbringing

Born on May 5, 1813, in Copenhagen to wealthy wool merchant Michael Pedersen Kierkegaard and his second wife Ane Sørensdatter Lund. His father was a melancholic, deeply religious man who believed he and his children were cursed because of youthful sins; this sense of guilt and divine punishment profoundly shaped Søren, as detailed by the Søren Kierkegaard Research Center and the BBC Religions.

University and Broken Engagement

Entered University of Copenhagen in 1830, initially studying theology, then philosophy and literature. Engaged to Regine Olsen in 1840 but broke it off in 1841, believing marriage would hinder his religious calling. The decision haunted him and became a recurring theme in his pseudonymous works, as documented by the Guardian and the Søren Kierkegaard Research Center.

Early Pseudonymous Works (1843)

Published Either/Or, Fear and Trembling (under Johannes de Silentio), and Repetition in 1843 — exploring aesthetic, ethical, and religious stages of existence. Fear and Trembling famously interprets Abraham’s willingness to sacrifice Isaac as the “teleological suspension of the ethical”, as preserved by the Project Gutenberg and the SparkNotes.

Attack on the Danish Church

In 1846 Kierkegaard published Concluding Unscientific Postscript under Johannes Climacus — emphasizing subjective truth. In 1854–1855 he launched a fierce attack on the Danish State Church in newspaper articles and pamphlets, calling it “Christendom” rather than true Christianity. He collapsed on October 11, 1855, while distributing pamphlets, as documented by the Søren Kierkegaard Research Center and the BBC.

Personal Life

Never married. His broken engagement to Regine Olsen remained a central emotional wound. He lived frugally and was often seen walking Copenhagen streets deep in thought, as detailed by the The Collector.

Death and Legacy

Søren Kierkegaard’s Enduring Impact

Kierkegaard died of a stroke (or possible suicide) on November 11, 1855, aged 42, after collapsing on October 11 while distributing pamphlets. Buried in Assistens Kirkegård, Copenhagen. His ideas on anxiety, despair, faith, and individuality profoundly influenced existentialism (Sartre, Heidegger, Camus), theology, and modern psychology. The Søren Kierkegaard Research Center in Copenhagen preserves his manuscripts, as celebrated by the National Geographic.

Frequently Asked Questions About Søren Kierkegaard

Why Is Søren Kierkegaard Famous?

Father of existentialism — Fear and Trembling, Either/Or, The Sickness Unto Death.

Why did Kierkegaard break his engagement?

Believed marriage would prevent his religious writing vocation.

Where was Søren Kierkegaard born?

Copenhagen, Denmark, May 5, 1813.

What is the 'leap of faith'?

Authentic religious belief requires commitment beyond rational proof.

What is the 'knight of faith'?

Individual who suspends ethical norms in absolute faith (Abraham).

Did Kierkegaard write under pseudonyms?

Yes — many (Johannes de Silentio, Climacus, Anti-Climacus).

How did Søren Kierkegaard die?

Paralysis/exhaustion November 11, 1855, aged 42.