Crown Prince Otto von Habsburg of Austria as a child
Archduke Rudolf and Princess Stephanie of Belgium
Archduke Franz Ferdinand of Austria with his daughter, Princess Sophie of Hohenberg.
Combined Photo of Crown Prince Rudolf (Rudolf Franz Karl Josef) (1858-1889) Austria & his lover Baroness Marie “Mary” Alexandrine Vetsera (1871-1889) Austria by unknown photographer. Intially the deaths were ruled poison but In Jul 2015 Vetsera's letters of farewell to her mother & other family members were found in a safe deposit box in an Austrian bank. Written in Mayerling shortly before their deaths they state clearly that Mary was preparing to commit suicide with Rudolf out of "love".