May 9, 1855, Leipzig, Germany.
September 13, 1932, Bilthoven (near Utretcht), Holland.
Begraafplaats Zorgvlied, Amsterdam, Holland.
Röntgen was a noted performer, composer, and musicologist. He conducted the Society for the Advancement of Musical Art (1866–98), taught in Amsterdam (1877–1925), helped found the Amsterdam Conservatory in 1884 (director, 1914–24), and conducted the Amsterdam Toonkunstkoor (1886–98). He is known for his symphonies, concertos, quintets, and sonatas.