The foundation, a nonprofit organization devoted to preserving the composer's legacy, acquired the skull in 1902 when, reportedly, a gravedigger retrieved it from the pauper's grave in Vienna's St. Marxer Cemetery where Mozart was buried in 1791. Through unspecified channels, the skull, minus its lower jaw, found its way to the foundation.
The skull has previously undergone several tests, all inconclusive. The outcome of the DNA tests will be reported early next year.