By the time of the Black death (1348), from which most of the population of the time died, most of the Vinschgau Valley, including Graun, had been settled by German speakers; the exception being the side valley of Müstair, where the Romansh language survives to this day.
Musta surma ajal (1348), milles enamus selle aja rahvast suri, asustati enamus Vinschgau orust, sealhulgas Graun, saksakeelsete inimestega; erandiks oli Müstairi külgorg, kus romanši keel on tänapäevani säilinud.