Archduke Ferdinand Karl of Austria Archduke Ferdinand Karl of Austria Archduke Ferdinand Karl of Austria, later known as Ferdinand Burg (Ferdinand Carl Ludwig Joseph Johann Maria; Vienna, 27 December 1868 – Munich, 12 March 1915) He was the third son of Archduke Charles Louis of Austria and Princess Maria Annunciata of Bourbon-Two Sicilies. Archduke Franz Ferdinand, whose assassination at Sarajevo on 28 June 1914 launched World War I, was his elder brother. He was a major-general in the Austrian Army. Like his brother, in 1909 he concluded an unequal marriage with Bertha Czuber (1879–1979), daughter of Emanuel Czuber. Unlike his brother, he did so without
Archduke Karl Ludwig of Austria Archduke Karl Ludwig of Austria Archduke Karl Ludwig Joseph Maria of Austria (30 July 1833 – 19 May 1896) was the younger brother of Franz Joseph I of Austria (1830–1916), the father of Archduke Franz Ferdinand of Austria (1863–1914), whose assassination ignited World War I, and grandfather of the last emperor, Charles I. He was born at Schönbrunn Palace in Vienna, the son of Archduke Franz Karl of Austria (1802–1878) and his wife Princess Sophie of Bavaria (1805–1872). His mother ensured he was raised a devout Roman Catholic by the Vienna Prince-archbishop Joseph Othmar Rauscher, a conviction that evolved into