Antonia Princess of Luxembourg
- Category : 1899-births
- Type : MGP
- Profile : 5/1 - Heretical / Investigator
- Definition : Single
- Incarnation Cross : LAX Endeavor 2
Luxembourgish princess of the House of Nassau-Weilburg by birth, and the last Crown Princess of Bavaria as the wife of Crown Prince Rupprecht.
Antonia was the fourth daughter of Guillaume/Wilhelm/Wellem IV, Grand Duke of Luxembourg, who reigned between 1905 and 1912, and Marie Anne, a princess of the Portuguese House of Braganza.
She was the younger sister of two successive grand duchesses: Marie-Adélaïde and Charlotte. In the family she was called "Toni".
Antonia became the second wife of Crown Prince Rupprecht on 7 April 1921 at Schloss Hohenburg. Antonia and Rupprecht had six children.
As opponents of the Nazi regime, Antonia and Rupprecht were forced into exile in Italy in 1939. From here, they moved to Hungary. When Germany occupied Hungary in October 1944, Antonia and her children were captured, while Rupprecht, still in Italy, evaded arrest. They were imprisoned at Sachsenhausen. In early April 1945, they were moved to Dachau concentration camp. Although liberated that same month, the imprisonment greatly impaired Antonia's health; the ordeal led to her vow never to return to German soil, and she died nine years later, on 31 July 1954, aged 54, at Lenzerheide, Switzerland.