Marie Gabrielle (German: Marie Gabrielle Mathilde Isabelle Therese Antoinette Sabine Herzogin in Bayern; 9 October 1878 – 24 October 1912)[1] Duchess in Bavaria, was the youngest daughter of Duke Karl Theodor in Bavaria and his second wife, Infanta Maria José of Portugal.

On 10 July 1900 in Munich at the Allerheiligen-Hofkirche, Marie Gabriele married her second cousin once-removed, Prince Rupprecht of Bavaria.

The wedding was attended by Prince Joachim of Prussia, representing his father Emperor Wilhelm II.

[3] The trip to Japan was scientific in nature, and the couple were accompanied by a renowned professor from the University of Munich.

Her only child to survive to adulthood was her second son Albrecht, who succeeded his father as the head of the House of Wittelsbach in 1955.