Kleist was born into the von Kleist family in Frankfurt an der Oder in the Margraviate of Brandenburg. After a scanty education, he entered the Prussian Army in 1792, served in the Rhine campaign of 1796, and retired from the service in 1799 with the rank of lieutenant. He studied law and philosophy at the Viadrina University and in 1800 received a subordinate post in the Ministry of Finance at Berlin.

In the following year, Kleist's roving, restless spirit got the better of him, and procuring a lengthened leave of absence he visited Paris and then settled in Switzerland. Here he found congenial friends in Heinrich Zschokke and Ludwig Friedrich August Wieland (d. 1819), son of the poet Christoph Martin Wieland; and to them he read his first drama, a gloomy tragedy, The Schroffenstein Family (1803, originally entitled The Ghonorez Family).

In the autumn of 1802, Kleist returned to Germany; he visited Goethe, Schiller, and Wieland in Weimar, stayed for a while in Leipzig and Dresden, again proceeded to Paris, and returning in 1804 to his post in Berlin was transferred to the Domänenkammer (department for the administration of crown lands) at Königsberg. On a journey to Dresden in 1807, Kleist was arrested by the French as a spy; he remained a close prisoner of the France at Châlons-sur-Marne. On regaining his liberty, he proceeded to Dresden, where, in conjunction with Adam Heinrich Müller (1779—1829), he published the journal Phöbus in 1808.

In 1809 Kleist went to Prague, and ultimately settled in Berlin, where he edited (1810/1811) the Berliner Abendblätter. Captivated by the intellectual and musical accomplishments of Henriette Vogel, Kleist, who was himself more disheartened and embittered than ever, agreed to do her bidding and die with her, carrying out this resolution by first shooting Vogel and then himself on the shore of the Kleiner Wannsee (Little Wannsee) near Potsdam, on 21 November 1811.

According to the Encyclopædia Britannica Eleventh Edition, "Kleist's whole life was filled by a restless striving after ideal and illusory happiness, and this is largely reflected in his work. He was by far the most important North German dramatist of the Romantic movement, and no other of the Romanticists approaches him in the energy with which he expresses patriotic indignation."

A life with a plan

In the spring of 1799, the 21-year-old Kleist wrote a letter to his half-sister Ulrike in which he found it "incomprehensible how a human being can live without a plan for his life" (Lebensplan). In effect, Kleist sought and discovered an overwhelming sense of security by looking to the future with a definitive plan for his life. It brought him happiness and assured him of confidence, especially knowing that life without a plan only saw despair and discomfort. The irony of his later suicide has been the fodder of his critics.

His first tragedy, The Schroffenstein Family (Die Familie Schroffenstein), has been already referred to; the material for the second, Penthesilea (1808), queen of the Amazons, is taken from a Greek source and presents a picture of wild passion. More successful than either of these was his romantic play, Käthchen of Heilbronn (Das Käthchen von Heilbronn) (1808), a poetic drama full of medieval bustle and mystery, which has retained its popularity.

In comedy, Kleist made a name with The Broken Jug (Der zerbrochne Krug) (1808), while Amphitryon (1808), an adaptation of Molière's comedy, is of less importance. Of Kleist's other dramas, Die Hermannsschlacht (1809) is a dramatic work of anti-Napoleonic propaganda, written as Austria and France went to war. It has been described by Carl Schmitt as the "greatest partisan work of all time". In it he gives vent to his hatred of his country's oppressors. This, together with the drama The Prince of Homburg (Prinz Friedrich von Homburg oder die Schlacht bei Fehrbellin), which is among his best works, was first published by Ludwig Tieck in Kleist's Hinterlassene Schriften (1821). Robert Guiskard, a drama conceived on a grand plan, was left a fragment.

Kleist was also a master in the art of narrative, and of his Gesammelte Erzählungen (Collected Short Stories) (1810—1811), Michael Kohlhaas, in which the famous Brandenburg horse dealer in Martin Luther's day is immortalized, is one of the best German stories of its time. The Earthquake in Chile (Das Erdbeben in Chili) and St. Cecilia, or the Power of Music (Die heilige Cäcilie oder die Gewalt der Musik) are also fine examples of Kleist's story telling as is The Marquise of O (Die Marquise von O.). His short narratives have largely influenced Kafka's. He also wrote patriotic lyrics in the context of the Napoleonic Wars.

A German Romantic

Apparently a Romantic by context, predilection, and temperament, Kleist subverts clichéd ideas of Romantic longing and themes of nature and innocence and irony, instead taking up subjective emotion and contextual paradox to show individuals in moments of crises and doubt, with both tragic and comic outcomes, but as often as not his dramatic and narrative situations end without resolution.

Seen as a precursor to Henrik Ibsen and modern drama because of his attention to the real and detailed causes of characters’ emotional crises, he was also understood as a nationalist poet in the German context of the early twentieth century, and was instrumentalized by Nazi scholars and critics as a kind of proto-Nazi author. To this day, many scholars see his play Die Hermannsschlacht ("The Battle of the Teutoburg Forest", 1808) as prefiguring the subordination of the individual to the service of the Volk (nation) that became a principle of fascist ideology in the twentieth century. Kleist criticism of the last generation has repudiated nationalist criticism and concentrated instead mainly on psychological, structural and post-structural, philosophical, and narratological modes of reading.

Kleist wrote one of the lasting comedies and most staged plays of the German canon, The Broken Jug (1803—05) in which a provincial judge gradually and inadvertently shows himself to have committed the crime under investigation. In the enigmatic drama The Prince of Homburg (1811), a young officer struggles with conflicting impulses of romantic self-actualization and obedience to military discipline. Prince Friedrich, who had expected to be executed for his successful but unauthorized initiative in battle, is surprised to receive a laurel wreath from Princess Natalie. To his question, whether this is a dream, the regimental commander Kottwitz replies, "A dream, what else?"