Rudolf Zistler

Rudolf Zistler was an Austro-Hungarian socialist and lawyer, most known for having defended members of Young Bosnia on trial for the assassination of Archduke Franz Ferdinand of Austria.
Zistler moved to Sarajevo before the start of World War I. His daughter Vanda Zistler became a prominent opera singer at the Sarajevo Opera, and had a "clear, powerful voice".
In 1937, Rudolf Zistler published a book about his experiences, titled Kako sam branio Principa i drugove.
A movie has been made about him: The Man Who Defended Gavrilo Princip.