Mechthildis Archduchess of Austria
- Category : 1891-births
- Type : MGP
- Profile : 3/5 - Martyr / Heretic
- Definition : Single
- Incarnation Cross : RAX Penetration 3
Archduchess of Austria, as a daughter of Archduke Charles Stephen of Austria and a first cousin of King Alphonso XIII of Spain. She was a member of the Teschen branch of the House of Habsburg-Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth. In 1913 she married Prince Olgierd Czartoryski. The couple had four children and lived in Poland until the outbreak of World War II when they emigrated to Brazil, where she died on 2 June 1966, aged 74, in Rio de Janeiro.