Original: 1889 & ndash ; Archduke Crown Prince Rudolf of Austria , heir to the Austro-Hungarian crown , is found dead with his mistress Baroness Mary Vetsera in Mayerling .
Simplified: 1889 -- Archduke Crown Prince Rudolf of Austria , heir to the Austro-Hungarian crown , was found dead with his mistress Baroness Mary Vetsera in Mayerling .