Definition of Grünewald, Mathias in English:
Grünewald, Mathias
proper nounˈɡryːnəvaltˈɡruːnəˌvaldˈɡro͞onˌväld
(c.1460–1528), German painter; born Mathis Nithardt; also called Mathis Gothardt. His most famous work is the nine-panel Isenheim Altar (completed 1516).