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Prince Frederick Charles of Hesse

1868 – 1940

German prince

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About Prince Frederick Charles of Hesse

Lived 1868 – 1940 (aged 72). Prince Frederick Charles of Hesse was an art collector.

Frederick Charles Louis Constantine, Prince and Landgrave of Hesse (; ; 1 May 1868 – 28 May 1940), was the brother-in-law of the German Emperor, Wilhelm II. He was elected King of Finland on 9 October 1918, but renounced the throne on 14 December 1918.

Early life Frederick was born at his family's Panker Castle, in Plön, Holstein. He was the third son of Frederick William of Hesse, Landgrave of Hesse, and his second wife Princess Anna of Prussia, daughter of Prince Charles of Prussia and Princess Marie Louise of Saxe-Weimar-Eisenach. Frederick William, a Danish military officer, had been one (and perhaps the foremost) of the candidates of Christian VIII of Denmark in the 1840s to succeed to the Danish throne if the latter's male line died out, but renounced his rights to the throne in 1851 in favor of his aunt, Louise. Frederick William was of practically Danish upbringing, having lived all his life in Denmark, but in 1875, when the senior branch of Hesse-Kassel became extinct, he settled in northern Germany, where the House had substantial landholdings.

He was known as Fischy to some of his family members.

Marriage and issue

On 25 January 1893, Frederick Charles married his second cousin, Princess Margaret of Prussia, youngest sister of Kaiser Wilhelm II and a granddaughter of Queen Victoria of the United Kingdom. They had six sons, including two sets of twins:

Friedrich Wilhelm of Hesse (23 November 1893 – 12 September 1916), died in World War I, during the Dobrujan campaign Maximilian Friedrich Wilhelm Georg (20 October 1894 – 13 October 1914), died in World War I Philipp, Landgrave of Hesse (1896–1980), twin with his brother Wolfgang; married Princess Mafalda of Savoy (1902–1944, Buchenwald), daughter of King Victor Emmanuel III of Italy and had issue. Prince Wolfgang of Hesse (1896–1989), twin with his brother Philipp. He was the designated Crown Prince of Finland officially until 14 December 1918. He married Princess Marie Alexandra of Baden, no issue Prince Christoph Ernst August of Hesse (1901–1943), twin with his brother Richard. An SS officer who died in active service during World War II, he married Princess Sophie of Greece and Denmark (sister of Prince Philip, Duke of Edinburgh) and had issue. Prince Richard Wilhelm Leopold (1901–1969), twin with his brother Christoph; unmarried

Upon their father's death in 1884, Frederick's eldest brother Frederick William became the head of the House of Hesse, and afterwards his next brother Alexander.

The Finnish throne The wedding of Prince Frederick Charles of Hesse and Princess Margaret of Prussia. Frederick Charles was elected the King of Finland by the Parliament of Finland on 9 October 1918. However, with the end of World War I, in light of his German birth (and despite his Danish roots through his paternal grandmother) and the abdication of Emperor Wilhelm II of Germany ending monarchies in Germany, the arrangement was quickly considered untenable by influential Finns of the time and by Frederick Charles himself. Not much is known of the official stance of the victorious Allied Powers. Frederick Charles renounced the throne on 14 December 1918, without ever arriving in the country, much less taking up his position. Finland's subsequent elections were a victory for anti-monarchists, and the parliament quickly adopted a republican constitution.

The electoral document refers to Prince Frederick Charles with the Finnish name Fredrik Kaarle. Other proposals for a Finnish regnal name included Kaarle and Kaarlo. The regnal name "Väinö I", which lived on in the memory of the Finns, probably came from a newspaper causerie: in 1927 in Suomen Sosialidemokraatti, "Hesekiel" (Heikki Välisalmi) claimed Väinö had been the intended name; already in 1918 in Uusi Päivä, "Olli" (Väinö Nuorteva) had suggested "Ilmari, Väinö, Kauko, Jouko, Usko, Jaska?".

Later life Landgrave Alexander Frederick of Hesse abdicated as the head of the House of Hesse on 16 March 1925, and was succeeded by Frederick Charles, his younger brother.

At Frederick's death, his eldest surviving son, Philipp, succeeded him as head.

However, according to certain family documents and correspondence, his successor as King of Finland would have been his second surviving son Prince Wolfgang of Hesse (1896–1989), apparently because Philipp was already the designated heir of the rights over the Electorate of Hesse, but certainly because Wolfgang was with his parents in 1918 and ready to travel to Finland, where a wedding to a Finnish lady was already in preparation for the coming crown prince. Philipp was in the military and unable to be contacted at the time.

Honours

Ancestry

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Important facts

Birth century
Occupation
Nationality
German Reich
Positions held
King
Awards
Knight Grand Cross of the Order of the Bath; Order of the Black Eagle; House Order of the Golden Lion; Knight Grand Cross of the Order of Ludwig I; Grand cross of the Order of Albert the Bear; Grand Cross of the Order of Saint Alexander; Grand Cross of the Order of the Redeemer; Grand Cross of the Order of the Red Eagle; Grand Cross of the House Order of the White Falcon; Knight of the Order of the Elephant; Order of Fidelity
Also known as
Frederick Charles Louis Constantine, Prince Frederick Charles Louis Constantine of Hesse, Frederick Charles of Hesse, Frederick Charles Louis Constantine of Hesse

Family & relationships

Spouse
Princess Margaret of Prussia
Child
Philipp, Landgrave of Hesse
Child
Prince Christoph of Hesse
Child
Prince Wolfgang of Hesse
Parent
Prince Frederick William of Hesse-Kassel
Parent
Princess Anna of Prussia

People in Prince Frederick Charles of Hesse's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Prince Frederick Charles of Hesse's

Frequently asked questions

Who was Prince Frederick Charles of Hesse?

German prince (1868–1940)

When was Prince Frederick Charles of Hesse born?

Prince Frederick Charles of Hesse was born on 1 May 1868 in Panker.

When did Prince Frederick Charles of Hesse die?

Prince Frederick Charles of Hesse died on 28 May 1940 in Kassel.

What was Prince Frederick Charles of Hesse's occupation?

Prince Frederick Charles of Hesse was an art collector.

What nationality was Prince Frederick Charles of Hesse?

Prince Frederick Charles of Hesse's recorded nationality: German Reich.

Sources & further reading

· Wikipedia: Prince Frederick Charles of Hesse

· Wikidata: Q63679

· DBpedia: Prince Frederick Charles of Hesse

Cite this page

APA: Biography.guide. (2026). Prince Frederick Charles of Hesse. https://biography.guide/prince-frederick-charles-of-hesse/

MLA: "Prince Frederick Charles of Hesse." Biography.guide, https://biography.guide/prince-frederick-charles-of-hesse/.

Chicago: "Prince Frederick Charles of Hesse." Biography.guide. https://biography.guide/prince-frederick-charles-of-hesse/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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