Analysis of information sources in references of the Wikipedia article "Ernst von Dohnányi" in English language version.
The "von" implies nobility, and according to a biography by his third wife, Ilona, his family was ennobled in 1697 and received a coat of arms, which she describes.Dohnányi, Ilona von (2002). James A. Grymes (ed.). Ernst von Dohnányi: A Song of Life. Bloomington: Indiana University Press. ISBN 0-253-34103-5.
The "von" implies nobility, and according to a biography by his third wife, Ilona, his family was ennobled in 1697 and received a coat of arms, which she describes.Dohnányi, Ilona von (2002). James A. Grymes (ed.). Ernst von Dohnányi: A Song of Life. Bloomington: Indiana University Press. ISBN 0-253-34103-5.