Prince Friedrich of Prussia (1911–1966) - Son of Wilhelm, German Crown Prince

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Prince Friedrich Georg Wilhelm Christoph of Prussia (19 December 1911 – 20 April 1966), also known as Friedrich von Preussen in the United Kingdom, was the fourth son of Crown Prince Wilhelm of Germany and Duchess Cecilie of Mecklenburg-Schwerin.
He was studying at Cambridge and lived incognito as the Count von Lingen when World War II broke out in September 1939. He renounced his German citizenship in 1947.
Frederick married Lady Brigid Guinness on 30 July 1945 at Little Hadham. They had five children:

• Prince Frederick Nicholas (born 3 May 1946) married non-dynastically, Hon. Victoria Lucinda Mancroft (born 7 March 1952, daughter of Stormont Mancroft, 2nd Baron Mancroft) on 27 February 1980 in London and has issue.
• Prince Andreas (born 14 November 1947) married non-dynastically, Alexandra Blahova (28 December 1947 - 8 September 2019) on 2 January 1979, and has issue.
• Princess Victoria Marina (born 22 February 1952) married Philippe Alphonse Achache (born 25 March 1945) on 3 May 1976, and has issue.
• Prince Rupert (born 28 April 1955) married non-dynastically, Ziba Rastegar-Javaheri (born 12 December 1954, into a family of wealthy Iranian industrialists[4]) on 5 January 1982 in London, and has issue.
• Princess Antonia (born 28 April 1955) who married Charles Wellesley, 9th Duke of Wellington on 3 February 1977 at St. Paul's Church, London, and has issue.

He was the owner of Schloss Reinhartshausen [de] at Erbach, Germany. While staying there in 1966, he went missing and was found two weeks later after he had drowned in the Rhine. Whether it was suicide or an accident could not be determined.

More information: Prince Frederick of Prussia (1911–1966) - Wikipedia

Information about Lady Brigid Guinness, wife of the Prince Friedrich of Prussia:

Lady Brigid Guinness - Wikipedia

en.wikipedia.org

Prince Friedrich of Prussia in 1915.

 

[CyrilVladisla]

Wedding picture of Lady Brigid and Prince Friedrich

https://www.pinterest.com/pin/532972937156989010/