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Catherine of Saxe-Lauenburg

1513 – 1535

Queen consort of Sweden

Queen
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About Catherine of Saxe-Lauenburg

Lived 1513 – 1535 (aged 21). Catherine of Saxe-Lauenburg was a Swedish queen.

Catherine of Saxe-Lauenburg (Katarina in Swedish; 24 September 1513 – 23 September 1535) was Queen of Sweden as the first wife of Gustav I from 1531 until her death in 1535.

Life Catherine was born in Ratzeburg to Magnus I, Duke of Saxe-Lauenburg and Catherine, daughter of Henry IV, Duke of Brunswick-Lüneburg.

Though little is known about her early life and upbringing , it is known that Catherine's mother was a strict Catholic and would have raised her daughters to be pious.

Her marriage to Gustav I of Sweden was arranged for political reasons. Gustav wished to marry shortly after having taken the Swedish throne. He had failed in his negotiations to marry Dorothea of Denmark (also proposed to by Philip of Hesse who was considered more advantageous); Sophia of Mecklenburg; Anna of Pomerania (parents considered his rule too unstable); and Hedwig of Poland (parents discontinued negotiations because of Swedish Reformation), and was finally advised to consider the Duchy of Saxe-Lauenburg.

Though the duchy was small and poor, it had many advantages: its dynasty was related to many of the most powerful dynasties of Europe, which would give valuable connections with the German princes; it was Protestant, which was important for the ongoing Swedish Reformation, but could also give Imperial connections through Catherine's mother; it would give a valuable link to Denmark, as Catherine's older sister Dorothea was married to Christian, the Crown Prince of Denmark; and finally, the duchy at that point was known as a center for mercenaries, which was important for Gustav as a newly established ruler. The negotiations started in 1528, but were delayed several years as the bride's father doubted the stability of the Swedish throne, doubt partially confirmed by events such as the Dalecarlian rebellions.

On 13 December 1533, she fulfilled her most important task as queen consort by giving birth to an heir to the throne: the future King Erik XIV.

In September 1535, during a ball given in honor of her brother-in-law, King Christian III of Denmark, who was visiting the Swedish royal court, Queen Catherine fell while pregnant during a dance with Christian III. The fall confined her to bed and led to complications, and she died on 23 September with her unborn child.

At the time of her death, King Gustav was involved in the Count's Feud, and his opponents in this conflict, Lübeck and Rostock, spread the rumor that he had murdered his queen by beating her on the head with a silver cane after a report from a spy that she had slandered him to Christian while dancing. The exhumation of Catherine's skeleton done in the 1940s showed no sign of any such injury, and no accusations were ever made by her family. Furthermore, Christian III himself confirmed the serious fall of Queen Catherine in his private letters, even though he was no friend of Gustav Vasa's.

In traditional history writings, Queen Catherine was given a bad reputation and often presented as a bad example, by contrast to the second queen of Gustav I, Queen Margaret, who was made out to be a stereotypically and perfectly ideal queen.

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Important facts

Birth century
Occupation
Queen
Nationality
Positions held
Queen consort
Also known as
Katharina von Sachsen-Lauenburg

Family & relationships

Spouse
Gustav I of Sweden
Child
Eric XIV of Sweden
Parent
Catherine of Brunswick-Wolfenbüttel, Duchess of Saxe-Lauenburg
Parent
Magnus I, Duke of Saxe-Lauenburg

People in Catherine of Saxe-Lauenburg's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Catherine of Saxe-Lauenburg's

Frequently asked questions

Who was Catherine of Saxe-Lauenburg?

Queen consort of Sweden

When was Catherine of Saxe-Lauenburg born?

Catherine of Saxe-Lauenburg was born on 24 September 1513 in Ratzeburg.

When did Catherine of Saxe-Lauenburg die?

Catherine of Saxe-Lauenburg died on 23 September 1535 in Stockholm.

What was Catherine of Saxe-Lauenburg's occupation?

Catherine of Saxe-Lauenburg was a queen.

What nationality was Catherine of Saxe-Lauenburg?

Catherine of Saxe-Lauenburg was Swedish.

Sources & further reading

· Wikipedia: Catherine of Saxe-Lauenburg

· Wikidata: Q236774

· DBpedia: Catherine of Saxe-Lauenburg

Cite this page

APA: Biography.guide. (2026). Catherine of Saxe-Lauenburg. https://biography.guide/catherine-of-saxe-lauenburg/

MLA: "Catherine of Saxe-Lauenburg." Biography.guide, https://biography.guide/catherine-of-saxe-lauenburg/.

Chicago: "Catherine of Saxe-Lauenburg." Biography.guide. https://biography.guide/catherine-of-saxe-lauenburg/.

Data last updated: 2026-09-27 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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