It has been variously claimed that she was killed by Crown Prince Rudolf, who then killed himself; that they both killed themselves; that they killed one another; that the two of them were murdered; and that she either was or was not pregnant at the time of her death.
Her body was spirited out of Mayerling and interred in the Cistercian monastery at Heiligenkreuz. Helmut Flatzelsteiner exhumed her body (without permission); she was reinterred in her original grave in October 1993.