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William Augustus, Duke of Brunswick-Harburg

1564 – 1642

German Prince

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About William Augustus, Duke of Brunswick-Harburg

Lived 1564 – 1642 (aged 78). William Augustus, Duke of Brunswick-Harburg was a German aristocrat.

Duke William Augustus of Brunswick-Lüneburg-Harburg (15 March 1564 in Harburg – 30 March 1642 in Harburg) was Duke of Brunswick-Lüneburg-Harburg.

Life William Augustus was a son of Duke Otto II of Brunswick-Harburg (1528-1603) from his second marriage with Hedwig (1535-1616), the daughter of the Count Enno II of East Frisia.

William Augustus was regarded as extremely learned and, like his father, as a follower of the Lutheran doctrine. In 1575, he became rector of the University of Rostock. He later continued his studies at the University of Leipzig. In 1582, he undertook a Grand Tour to France and England and then enrolled with his brothers at the University of Helmstedt. In 1594, he again went on a journey that took him through Germany, Poland, Switzerland, Italy, Holland, Denmark and Livonia. William Augustus kept a journal about his travels.

After the death of his father, he took up the government of Harburg jointly with his brothers Christopher and Otto III. After they died, he ruled alone.

In 1618, William Augustus began the construction of the palace at Moisburg. After the death of the Duke Frederick Ulrich of Brunswick-Wolfenbüttel, he received the County of Hoya from his inheritance. August Wilhelm died unmarried and childless. His inheritance was divided by Dukes of Frederick IV of Brunswick-Celle and Augustus II of Brunswick-Wolfenbüttel.

Ancestors

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Important facts

Birth century
Occupation
Nationality
Also known as
Wilhelm August Herzog von Braunschweig-Lüneburg-Harburg

Family & relationships

Parent
Otto II, Duke of Brunswick-Harburg

Contemporaries

People whose lives overlapped William Augustus, Duke of Brunswick-Harburg's

Frequently asked questions

Who was William Augustus, Duke of Brunswick-Harburg?

German Prince

When was William Augustus, Duke of Brunswick-Harburg born?

William Augustus, Duke of Brunswick-Harburg was born on 15 March 1564 in Harburg.

When did William Augustus, Duke of Brunswick-Harburg die?

William Augustus, Duke of Brunswick-Harburg died on 30 March 1642 in Harburg.

What was William Augustus, Duke of Brunswick-Harburg's occupation?

William Augustus, Duke of Brunswick-Harburg was an aristocrat.

What nationality was William Augustus, Duke of Brunswick-Harburg?

William Augustus, Duke of Brunswick-Harburg was German.

Sources & further reading

· Wikipedia: William Augustus, Duke of Brunswick-Harburg

· Wikidata: Q89417

· DBpedia: William Augustus, Duke of Brunswick-Harburg

Cite this page

APA: Biography.guide. (2026). William Augustus, Duke of Brunswick-Harburg. https://biography.guide/william-augustus-duke-of-brunswick-harburg/

MLA: "William Augustus, Duke of Brunswick-Harburg." Biography.guide, https://biography.guide/william-augustus-duke-of-brunswick-harburg/.

Chicago: "William Augustus, Duke of Brunswick-Harburg." Biography.guide. https://biography.guide/william-augustus-duke-of-brunswick-harburg/.

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

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