Gisela of Swabia
Gisela of Swabia (11 November 990 – 14 February 1043), a member of the Conradiner dynasty, was Queen consort of Germany from 1024 to 1039 and Empress consort of the Holy Roman Empire from 1027 to 1039 by her third marriage with Emperor Conrad II.
She was the mother of Emperor Henry III.
She was regent of Swabia for her minor son Duke Ernest II of Swabia in 1015.
Ernest I, Duke of Brunswick-Grubenhagen
Ernest I of Brunswick- Grubenhagen( – 9 March 1361) was Prince of Brunswick- Grubenhagen.
Charles William Ferdinand, Duke of Brunswick
Charles William Ferdinand, Duke of Brunswick-Lüneburg, Prince of Brunswick-Wolfenbüttel (9 October 1735 – 10 November 1806) was the Prince of Brunswick-Wolfenbüttel and Duke of Brunswick-Lüneburg and a military leader.
His titles are usually shortened to Duke of Brunswick in English-language sources.
He succeeded his father as sovereign prince of the Principality of Brunswick-Wolfenbüttel, one of the princely states of the Holy Roman Empire.
The duke was a cultured and benevolent despot in the model of Frederick the Great, and was married to Princess Augusta, a sister of George III of Great Britain.
He was also a recognized master of 18th century warfare, serving as a Field Marshal in the Prussian Army.
During the Napoleonic Wars, he was mortally wounded by a musket ball at the Battle of Jena–Auerstedt in 1806.
Duchess Luise of Brunswick-Wolfenbüttel
Luise of Brunswick- Wolfenbüttel( Luise Amalie; 29 January 1722 – 13 January 1780) was daughter of Ferdinand Albert II, Duke of Brunswick- Wolfenbüttel and his wife Duchess Antoinette of Brunswick- Wolfenbüttel.
Leopold of Brunswick-Wolfenbüttel
Maximilian Julius Leopold of Brunswick- Wolfenbüttel, prince of Brunswick- Wolfenbüttel and nominal duke of Brunswick and Lüneburg( 12 October 1752, Wolfenbüttel- 27 April 1785, Frankfurt) was a Prussian general.
William, Duke of Brunswick-Grubenhagen
William of Brunswick- Grubenhagen( – 1360) was a Prince of Brunswick- Grubenhagen.
Anna of Brunswick-Grubenhagen-Einbeck
Anna of Brunswick- Grubenhagen- Einbeck( 1414 – 4 April 1474) was a daughter of Duke Eric I of Brunswick- Grubenhagen and his wife, Elisabeth of Brunswick- Göttingen.
Anna's first marriage was with Duke Albert III of Bavaria.
They had the following children:
After Albert's death, she married Duke Frederick III of Brunswick- Calenberg- Göttingen.
This marriage remained childless.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Duke Louis Ernest of Brunswick-Lüneburg
Louis Ernest of Brunswick- Lüneburg- Bevern( 25 September 1718, Wolfenbüttel – 12 May 1788, Eisenach) was a field- marshal in the armies of the Holy Roman Empire and the Dutch Republic, the elected Duke of Courland( 1741).
From 13 November 1750 to 1766 he was the Captain- General of the Netherlands, where he was known as the Duke of Brunswick or( to distinguish him from his eldest brother Charles, who succeeded to their father's title of Duke of Brunswick- Lüneburg) Duke of Brunswick- Wolfenbüttel.
Another brother was Duke Ferdinand of Brunswick who led the Allied Anglo- German army during the Seven Years' War.
He was probably one of the first victims of the media in Dutch history.
Brun I, Count of Brunswick
Brun (Latin Bruno; born around 975, died around 1010), was Count in the Derlingau, the Nordthüringgau, the Hastfalagau, the Salzgau, the Gau Gretinge, and the Gau Mulbeze, with Brunswick as his residence.
Brun was a member of the Brunones dynasty.
Brun's father is assumed to have been Count Liudolf (died 993).
In 1002, Brun married Gisela of Swabia, who later became wife of the Emperor.
Their oldest son was Liudolf (about 1003–1038).
In 990, Brun was a member of the Saxon army that supported Mieszko I, Duke of Poland, against Boleslaus II, Duke of Bohemia, in Silesia.
Brun participated in the election for King of the Romans of 1002 (after the death of Otto III, Holy Roman Emperor) as a candidate and elector.
When his own candidacy failed, he supported Herman II, Duke of Swabia, whose daughter he married in the same year.

Question: What is the date of birth of Brun I, Count Of Brunswick's wife?
Answer: 11 November 990