In the 1990s, it was suggested that Maria might have been the grand duchess whose remains were missing from the Romanov grave that was discovered near Yekaterinburg, Russia and exhumed in 1991.
Na década de 1990, suxeriuse que María podería ser a gran duquesa cuxos restos faltaban da tumba dos Romanov descuberta preto de Ekaterimburgo, Rusia e que foron exhumados en 1991.