Princess Sophie von Hohenberg was born on 24 july 1901 and was the eldest of four children of the morganatic marriage of Archiduke Franz Ferdinand, nephew of the Emperor Franz Josef I of Austria, and Countess Sophie Chotek.
Upon the marriage, the Countess was made Her Serene Highness Sophie von Hohenberg, but in 1909 her title was raised to Her Highness Duchess Sophie von Hohenberg, and the children became Prince or Princess von Hohenberg.
After the assassination of her parents, Sophie and her two surviving brothers, Maximilian (1902-1962) and Ernst (1904-1954), were taken in by their father's close friend Graf Jaroslav Thurn.
They were exiled from Czechoslovakia and took refuge in Vienna and Schloss Artstetten.
On 1920, Sophie married Count Friedrich von Nostitz-Rieneck and had four children, three sons and a daughter.
In 1938, following the Anschluss, sophie and her brothers were arrested and deported to Dachau concentration camp where they spent the next seven years of their lives.
She died 27 october 1990.