Involved with the Franco-Polish intelligence unit F2 from November 1941, she was arrested in Paris in July 1944 by the Gestapo, then tortured and deported to the Ravensbrück women concentration camp.

Dior was subsequently forced to work in the Torgau military prison, in the Buchenwald's satellite camp of Abberode, and finally in a factory near Leipzig.

Following the bankruptcy of the Dior factories in the aftermath of the 1929 financial crash and the death of her mother in 1931, the family settled in 1932 in Callian, near Grasse in Provence.

[7] Dior was involved with the "Massif Central" section of the F2 network, a British-funded Resistance intelligence unit set up by the Polish government-in-exile to operate in France.

[8][9][10] Des Charbonneries belonged to the same network and operated in the Zone Sud under the leadership of Admiral Jacques Trolley de Prévaux.

Christian tried to seek her release via the Nazi contacts he had made at his job and with the help of his friend, Swedish consul-general Raoul Nordling.

[11] Dior was subsequently transferred from Ravensbrück to the military prison of Torgau and posted to the all-female "Anton Kommando" to work on the production of explosives in a disused potassium mine.

When she arrived back in Paris, she was so emaciated that her brother Christian didn't recognize her and she was too sick to eat the dinner he'd prepared to celebrate her return.

[13] Christian Dior's testament will, dated 30 August 1957, bequeathed his possessions to be equally shared between his sister Catherine and Raymonde Zehnacker, his right-hand woman.

The fame of [her] brother Christian Dior must not be used to highlight the scandal and risk tarnishing a name carried with honour and patriotism by members of my family.