Archduke Franz Salvator of Austria was the son of Archduke Karl Salvator of Austria and Princess Maria Immacolata of Bourbon-Two Sicilies. He married Archduchess Marie Valerie in 1890, though, due to Marie Valerie's death in 1924, remarried in 1934 to Baroness Melanie von Riesenfels.

Archduke Karl Salvator of Austria, was a member of the Tuscan branch of the House of Habsburg.