Maria Beccadelli di Bologna
Maria Beccadelli di Bologna, Marchesa di Altavilla, Principessa di Camporeale (born February 6, 1848 i Naples, died January 20, 1929 in Rome), married Princess Maria von Bülow, was the wife of Prince Bernhard von Bülow, the Chancellor of Germany.
She was the daughter of Domenico Beccadelli di Bologna (1826–1863), Principe di Camporeale and Laura, née Acton. Her mother was married in second marriage to the Italian prime minister Marco Minghetti and played a central role in Italian and German aristocracy.
Maria also called herself Marie after her marriage to the Prussian diplomat Karl August, Count of Dönhoff. They married on May 15, 1867 in Lugano, but were divorced in 1882 and the marriage annulled by the Pope in 1884. On January 9, 1886, she married Bernhard, Prince of Bülow in Vienna. Maria became a confidant of the Prussian Crown Princess Victoria.