From the Telegraph and Times of 22 May 2014: zu LÖWENSTEIN-WERTHEIM-FREUDENBERG. Prince Rupert Ludwig Ferdinand died peacefully aged 80 in the early hours on 20th May 2014, after a long illness, most courageously borne. Beloved husband, father and grandfather. Funeral to be held on Friday 30th May at 11 a.m. at The Oratory, Brompton Road, London SW7 2RP. Family flowers only. Donations to Aid to the Church in Need or The Cure Parkinson's Trust c/o T H Sanders & Sons, 1a Upper Ham Road, Ham Common, Richmond, TW10 5LD.
He was s of Prince (Felicien) Leopold Maximilian Frederick Ludwig Hubertus zu LÖWENSTEIN-WERTHEIM-FREUDENBERG (1903-74) and his 1st w Countess Bianca Henrietta Maria Fischler von Treuberg (1913-84). He m 1957 Josephine Clare (b 1931), d of Montagu William LOWRY-CORRY (1907-77), scion of the BELMORE earls, and his 1st w Hon Mary Constance BIDDULPH, (d 1991) d of 2nd Baron BIDDULPH (1869-1949) and his w a scion of the MURE gentry family of Caldwell and of the LECONFIELD barons, and had two sons and a dau (see Telegraph obit extract below).
There were full obits in the Times and Telegraph, the following is an extract from the latter obit:
Prince Rupert zu Loewenstein was a Bavarian aristocrat and banker who disliked rock and roll but made The Rolling Stones very rich.
... His father, Prince Leopold, a native of Salzburg, traced descent through the royal house of Wittelsbach from the Elector Palatine Friedrich I (1425-76), whose son Ludwig — by a mistress, Clara Tott, whom the Elector married to legitimise the child — became Count of Loewenstein, near Heilbronn in what is now Baden-Wurtemberg, in 1488. Rupert’s mother was a daughter of the Count of Treuberg, and the family’s connections could be traced throughout the Almanack de Gotha. Non-noble forebears included the Frankfurt financier Mayer Amschel Rothschild, founder of the famous banking dynasty.
... Loewenstein’s own money, both old and new, enabled him to live in grand style in later years in a former grace-and-favour mansion, Petersham Lodge — not far from the Jagger ménage on Richmond Hill — which he bought in 1987 for around £2 million.
... Prince Rupert married, in 1957 at the London Oratory, Josephine Lowry-Corry, a barrister’s daughter who had trained as a ballet dancer at Sadler’s Wells until she grew too tall, then retrained as an opera singer. The honeymoon included a visit to the Wagner festival at Bayreuth. The Loewensteins had two sons, Princes Rudolf and Konrad, both of whom became priests, and a daughter, Princess Maria-Theodora (Dora), who married an Italian count, Manfredi della Gherardesca, and became a director of her father’s business.
http://www.telegraph.co.uk/news/obituaries/10847031/Prince-Rupert-zu-Loewenstein-obituary.html