Catherine Antonovna of Brunswick
Catherine Antonovna of Brunswick-Lüneburg (1741–1807) was the daughter of Duke Anthony Ulrich of Brunswick and Grand Duchess Anna Leopoldovna of Russia and sister of Ivan VI.
She was imprisoned by Empress Elizabeth of Russia along with her family from 1742 to 1780 at Kholmogory, and in 1780, she and two brothers and a sister were placed under house arrest for the rest of their lives in Horsens.
She was the last descendant of Ivan V of Russia.
She became deaf after being dropped during the chaos of Empress Elizabeth's coup, and like her siblings, was sickly and suffered from bouts of seizures for much of her life.
She and her three surviving siblings were released into the custody of their aunt, the Danish queen dowager Juliana Maria of Brunswick-Wolfenbüttel, on 30 June 1780, and settled in Jutland.
There they lived under house arrest in Horsens for the rest of their lives under the guardianship of Juliana and at the expense of Catherine.
Although they were prisoners, they lived in relative comfort and retained a small "court" of between 40 and 50 people, all Danish except for the priest.
By 1798, Catherine lived alone in Horsens, since all her siblings had died.
In 1803, she wrote a letter to Alexander I of Russia: she told him how her Danish servants took advantage of her difficulty in hearing and talking, described how much she had missed the Russian prison in Kholmogory, where she and her siblings had been happy together, and asked him to be allowed to return.
He never replied.
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 Anthony Ulrich of Brunswick
Anthony Ulrich (28 August 1714, Bevern – 4 May 1774
(O.S.), Kholmogory), Duke of Brunswick-Lüneburg, was generalissimus of the Army of Russia, and the husband of Anna Leopoldovna, who reigned as regent of Russia for one year.
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.
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.
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.
Elizabeth Antonovna of Brunswick
Elizabeth Antonovna of Brunswick- Lüneburg( 1743 – 1782) was the daughter of Duke Anthony Ulrich of Brunswick and Grand Duchess Anna Leopoldovna of Russia.
Born after the deposition of her brother Ivan VI, she was kept imprisoned by Empress Elizabeth of Russia along with her family at Kholmogory, and in 1780, she and two brothers and a sister were placed under house arrest for the rest of their lives in Horsens.
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.
Ernest I, Duke of Brunswick-Grubenhagen
Ernest I of Brunswick- Grubenhagen( – 9 March 1361) was Prince of Brunswick- Grubenhagen.
William, Duke of Brunswick-Grubenhagen
William of Brunswick- Grubenhagen( – 1360) was a Prince of Brunswick- Grubenhagen.

Question: What is the date of death of Catherine Antonovna Of Brunswick's father?
Answer: 4 May 1774