with violinist Alfred Wittenberg and pianist Moritz Mayer-Mahr, on acoustic Parlophon P 1736-I. These three artists toured widely as members of an established piano trio. Personal life Grünfeld met Adleheid Zimmermann, the daughter of Richard Andree the German geographer and cartographer, at Bayreuth. They remained married until his death. References Bibliography Hugo Riemann, Musik-Lexikon; Theodore Baker, Biographical Dictionary of Music and Musicians'' 1855 births 1931 deaths 19th-century classical composers 20th-century classical composers Musicians from Prague People from the Kingdom of Bohemia Czech Jews Austro-Hungarian Jews 19th-century Austrian people Jewish songwriters Jewish classical composers Austrian classical cellists Austrian classical composers Czech classical cellists Czech male classical composers Austrian male classical composers Czech Romantic composers 20th-century Czech male musicians 19th-century Czech male musicians 20th-century cellists