The Mayerling Incident was the apparent murder-suicide of 30-year-old Crown Prince Rudolf of Austria and his lover, 17-year-old Baroness Maria Vetsera, in 1889. His father, the emperor, had objected to the affair and reportedly ordered them to end the relationship. Rudolf became despondent and allegedly formed a suicide pact with his mistress. Although their deaths were officially declared a double suicide, efforts to disguise the facts provoked many rumors, including what conspiracy theories? Discuss
Source: The Free Dictionary