Category:Otto, Duke of Brunswick-Lüneburg (1572-1641)

**Otto III**
	Duke of Brunswick-Harburg (1572-1641)
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Date of birth	20 March 1572 (statement with Gregorian date earlier than 1584); Harburg
Date of death	25 February 1641; Harburg
Country of citizenship	Germany;
Occupation	aristocrat;
Noble title	duke;
Family	House of Welf;
Father	Otto II, Duke of Brunswick-Harburg;
Mother	Hedwig von Ostfriesland;
Sibling	Anna Margarete von Braunschweig-Harburg; William Augustus, Duke of Brunswick-Harburg; Duke Otto Henry of Brunswick-Harburg; Christopher, Duke of Brunswick-Harburg;
Spouse	Hedwig von Braunschweig-Wolfenbüttel (1621–);
Authority file
	Q96003; VIAF ID: 59940084; GND ID: 121425886
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English: Otto III, Duke of Brunswick-Lüneburg, Lord of Harburg (20 March 1572 in Harburg – 4 August 1641 in Harburg) was a titular Duke of Brunswick-Lüneburg and ruler of the apanage Brunswick-Harburg.

Deutsch: Otto III. von Braunschweig-Lüneburg-Harburg (* 20. März 1572 in Harburg; † 4. August 1641 in Harburg) war Inhaber der Herrschaft Harburg.