His parents were Janusz Franciszek, Prince Radziwiłł (1880–1967) and his wife, Princess Anna Lubomirska (1882–1947).
1894
Grace Maria Kolin later married William Ward, 3rd Earl of Dudley (1894–1969) as his third wife, and from 1975, she lived with Robert B. Silvers.
1906
Stanisław had two elder brothers, Prince Edmund Radziwiłł (1906–1971) and Prince Ludwik Radziwiłł (1911–1928).
1914
Prince Stanisław Albrecht "Stash" Radziwiłł (21 July 1914 – 27 July 1976) was a Polish aristocrat, diplomat, chargé d'affaires of the Polish government in exile at the League of Nations, delegate of the Polish Red Cross, real estate dealer, and director of Olympic Airways.
1940
Radziwiłł married Rose de Mauléon (1913–1996), on 10 April 1940, former niece-in-law of Irina Ovtchinnikova, wife of Prince Peter of Greece and Denmark.
1945
They had no children and their marriage was annulled in 1945.
She later married Baron de Chollet, a Swiss banker.
1946
Radziwill married Grace Maria Kolin on 2 May 1946.
1953
Radziwiłł was one of the organisers of the Sikorski Historical Institute in London and founder of St. Anne's Church at Fawley Court, the site of Divine Mercy College, a school for boys of Polish origin, set up by the Marian Fathers in 1953 near Henley-on-Thames, England.
1958
They were divorced in 1958.
The marriage produced one son:
1959
Radziwiłł married Caroline Lee Bouvier Canfield on 19 March 1959.
They had two children:
1976
He died on 27 July 1976, in London, six days after his 62nd birthday.
His body was interred in the crypt of St Anne's Church at Fawley Court.
According to Debrett's, although known as Prince Radziwiłł in Britain, on becoming a British subject and in keeping with standard practice, Radziwiłł strictly needed permission from Queen Elizabeth II to use his princely title.
2016
The Radziwiłł family held the title Prince of the Holy Roman Empire since the early 16th century.
However, noble titles were abolished in Poland and Austria.
