Archduke Franz Ferdinand of Austria |Archduke Franz Ferdinand|
|Spouse||Sophie, Duchess of Hohenberg| |Princess Sophie of
Hohenberg Maximilian, Duke of Hohenberg Prince Ernst of
Hohenberg |House||House of Habsburg-Lorraine| |Father||Archduke
Karl Ludwig of Austria| |Mother||Princess Maria Annunciata of
Bourbon-Two Sicilies| 18 December 1863| Graz, Austrian Empire
|Died||28 June 1914 |Monarchical styles of Franz Ferdinand of
Austria-Este |Reference style||His Imperial and Royal Highness|
|Spoken style||Your Imperial and Royal Highness| Franz Ferdinand
(18 December 1863 – 28 June 1914) was an Archduke of Austria-
Este, Austro-Hungarian and Royal Prince of Hungary and of
Bohemia, and from 1889 until his death, heir presumptive to the
Austro-Hungarian throne. His assassination in Sarajevo
precipitated Austria-Hungary's declaration of war against
Serbia. This caused the Central Powers (including Germany and
Austria-Hungary) and the Allies of World War I (countries allied
with Serbia or Serbia's allies) to declare w