Mary of England
Mary of England may refer to:
Princess Mary
Princess Mary may refer to:
Princess Mary of Great Britain
Princess Mary of Great Britain (5 March 1723 – 14 January 1772) was the second-youngest daughter of King George II of Great Britain and his wife, Caroline of Ansbach, and Landgravine of Hesse-Kassel as the wife of Frederick II, Landgrave of Hesse-Kassel.
Frederick II, Landgrave of Hesse-Kassel
Frederick II
(14 August 1720 – 31 October 1785) was Landgrave of Hesse-Kassel (or Hesse-Cassel) from 1760 to 1785.
He ruled as an enlightened despot, and raised money by renting soldiers (called "Hessians") to Great Britain to help fight the American Revolutionary War.
He combined Enlightenment ideas with Christian values, cameralist plans for central control of the economy, and a militaristic approach toward international diplomacy.
William I, Elector of Hesse
William I, Elector of Hesse( 3 June 1743 – 27 February 1821) was the eldest surviving son of Frederick II, Landgrave of Hesse- Kassel( or Hesse- Cassel) and Princess Mary of Great Britain, the daughter of George II.
Princess Mary of Orange
Princess Mary of Orange may refer to:
William I, Elector of Hesse
William I, Elector of Hesse( 3 June 1743 – 27 February 1821) was the eldest surviving son of Frederick II, Landgrave of Hesse- Kassel( or Hesse- Cassel) and Princess Mary of Great Britain, the daughter of George II.
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.
Mary of France
Mary of France may refer to:
Prince Frederick of Hesse-Kassel
Prince Frederick of Hesse- Kassel( 11 September 1747 – 20 May 1837) was a younger member of the dynasty that ruled the Landgraviate of Hesse- Kassel( or Hesse- Cassel) and a Danish general.
He was born as the youngest son of Hereditary Prince Frederick of Hesse- Kassel( the future Landgrave Frederick II) and Princess Mary of Great Britain.
He was the last surviving grandchild of George II of Great Britain, dying one month before Queen Victoria( granddaughter of his first cousin King George III) ascended to the throne.

Question: What is the date of death of Princess Mary Of Great Britain's husband?
Answer: 31 October 1785