Sixtus of Bourbon-Parma

Sixtus of Bourbon-Parma was a prince and Lieutenant in the Belgian army during the First World War.

Biography
In 1917, he along with his brother, Xavier and French intelligence captain, Indiana Jones, went to Austria to convince his brother-in-law, Emperor Karl I, to agree to a separate peace with Britain and France.

Appearances

 * Adventures in the Secret Service
 * The Secret Peace
 * The Secret Treaty