Prince Frederick George William Christopher of Prussia (; 19 December 1911 – 20 April 1966), also known as Friedrich von Preussen in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

,Commons Debate of 19 October 1961
/ref> was the fourth son of

Crown Prince Wilhelm of Germany Wilhelm, German Crown Prince, Crown Prince of Prussia (Friedrich Wilhelm Victor August Ernst; 6 May 1882 – 20 July 1951) was the eldest child of the last German emperor, Wilhelm II, and his consort Augusta Victoria of Schleswig-Holstein, an ...

and

Duchess Cecilie of Mecklenburg-Schwerin Duchess Cecilie Auguste Marie of Mecklenburg-Schwerin (20 September 1886 – 6 May 1954) was the last German Empire, German Crown Princess and Crown Princess of Kingdom of Prussia, Prussia as the wife of Wilhelm, German Crown Prince, the son o ...

Marriage and issue

Frederick married

Lady Brigid Guinness Lady Brigid Katharine Rachel Guinness (30 July 19208 March 1995) was the youngest daughter of Rupert Guinness, 2nd Earl of Iveagh, and wife of Prince Frederick of Prussia (1911–1966), Prince Frederick of Prussia, grandson of Wilhelm II, German ...

on 30 July 1945 at

Little Hadham Little Hadham is a village and civil parish in the district of East Hertfordshire, Hertfordshire, England. At the census of 2001 it had a population of 1,081, increasing to 1,153 at the 2011 Census. It is bypassed by the A120 road, which connect ...

. They had five children:Eilers, Marlene. Queen Victoria's Descendants. Rosvall Royal Books, Falkoping, Sweden, 1997. pp.17-18, 124-125, 172. *Prince Frederick ''Nicholas'' married

non-dynastic A dynasty is a sequence of rulers from the same family, usually in the context of a monarchical system, but sometimes also appearing in republics. A dynasty may also be referred to as a "house", "family" or "clan", among others. Historians ...

allyGenealogisches Handbuch des Adels, Fürstliche Häuser XIV. "Haus Preußen". C.A. Starke Verlag, 1991, pp. 148-149. . Hon. Victoria Lucinda Mancroft (daughter of

Stormont Mancroft, 2nd Baron Mancroft Stormont Mancroft Samuel Mancroft, 2nd Baron Mancroft (27 July 1914 – 14 September 1987), born Stormont Mancroft Samuel, was a British Conservative politician. Early life Mancroft was the son of Arthur Samuel, 1st Baron Mancroft, and Phoeb ...

) in 1980 in London and has issue. *Prince Andreas married non-dynastically Alexandra Blahova in 1979, and has issue, including: ** Tatiana von Preussen *Princess Victoria Marina married Philippe Alphonse Achache in 1976, and has issue. *Prince Rupert married non-dynastically Ziba Rastegar-Javaheri in 1982 in London, and has issue. * Princess Antonia who married

Charles Wellesley, 9th Duke of Wellington Arthur Charles Valerian Wellesley, 9th Duke of Wellington, 9th Prince of Waterloo, 10th Duke of Ciudad Rodrigo, 9th Duke of Victoria, GE, OBE, DL (born 19 August 1945), styled Earl of Mornington between 1945 and 1972 and Marquess of Douro be ...

in 1977 at St. Paul's Church, London, and has issue.

Studies in Britain and internment

He was studying at

Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...

and lived incognito as the ''Count von Lingen'' when

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

broke out in September 1939. He was arrested and interned in May 1940. He was held in Britain for several months and sent to

internment camps Internment is the imprisonment of people, commonly in large groups, without charges or intent to file charges. The term is especially used for the confinement "of enemy citizens in wartime or of terrorism suspects". Thus, while it can simp ...

near

Quebec City Quebec City is the capital city of the Provinces and territories of Canada, Canadian province of Quebec. As of July 2021, the city had a population of 549,459, and the Census Metropolitan Area (including surrounding communities) had a populati ...

and soon afterwards in

Farnham, Quebec Farnham is a city in Brome-Missisquoi Regional County Municipality in the Estrie region of Quebec, Canada. The population as of the Canada 2021 Census was 10,149, making it the second most populated community in the RCM. History The city of ...

. In both camps, he was elected camp leader by fellow inmates.Grandson of Kaiser Was Held in Canada. Toronto Star, June 1, 1945, p. 28

British naturalisation in 1947

He renounced his German citizenship in 1947. He was naturalised as a British citizen in October 1947 under the name ''Friedrich von Preussen'' (having also been known during residence in the UK as "George Mansfield"). This naturalisation was controversial, in part because being a descendant of

Sophia of Hanover Sophia (born Princess Sophia of the Palatinate; – ) was Electress of Hanover from 19 December 1692 until 23 January 1698 as the consort of Prince-Elector Ernest Augustus. She was later the heiress presumptive to the thrones of England and ...

, and having rights under the

Act of Settlement 1701 The Act of Settlement ( 12 & 13 Will. 3. c. 2) is an act of the Parliament of England that settled the succession to the English and Irish crowns to only Protestants, which passed in 1701. More specifically, anyone who became a Roman Catho ...

, as amended by the Sophia Naturalisation Act 1705, he had a claim to British citizenship from birth. His status in context of his claim for compensation for property seized in

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

was debated in Parliament and the law courts until 1961.

Death

He was the owner of at Erbach, Germany. While staying there in 1966, he went missing and was found two weeks later after he had drowned in the

Rhine The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...

. Whether it was suicide or an accident could not be determined.

Ancestry

Notes

{{DEFAULTSORT:Frederick Of Prussia 1911 births 1966 deaths 20th-century German people House of Hohenzollern Prussian princes Royalty from Berlin People from the Province of Brandenburg German emigrants to England Naturalised citizens of the United Kingdom People from the Rheingau Children of Wilhelm, German Crown Prince German people imprisoned in the United Kingdom Deaths by drowning in Germany