Archduke Franz Karl of Austria

Archduke Franz Karl Joseph of Austria (17 December 1802 – 8 March 1878) was a member of the House of Habsburg-Lorraine. He was the father of two emperors: Franz Joseph I of Austria and Maximilian I of Mexico. Through his third son Karl Ludwig, he was the grandfather of Archduke Franz Ferdinand of Austria – whose assassination sparked the hostilities that led to the outbreak of World War I – and the great-grandfather of the last Habsburg emperor Karl I. Life Early life and marriage Franz Karl was born in Vienna, the third son of Emperor Francis II of the Holy Roman Empire by his second marriage with Princess Maria Theresa from the House of Bourbon, daughter of King Ferdinand I of the Two Sicilies and Maria Carolina of Habsburg-Lorraine. On 4 November 1824 in Vienna, he married Princess Sophie of Bavaria from the House of Wittelsbach, a daughter of King Maximilian I Joseph of Bavaria by his second wife Caroline of Baden. Sophie's paternal half-sister, Caroline Augusta of Bavaria was by this time Franz Karl's stepmother, having married his thrice-widowed father in 1816. The Wittelsbachs condoned the unappealing manners of Sophie's husband in consideration of the incapability of his elder brother Ferdinand and Sophie's chance to become Austrian Empress.