Karl Schröder II (18 December 1848, Quedlinburg – 22 September 1935, Bremen) was a German cellist, composer and conductor, and son of violinist Karl Schröder.He studied as a child with his father and with Karl Drechsler in Dessau. He had three brothers, Carl Hermann Schroeder (1843-1909), who became a composer and violin professor in Berlin, Franz Schröder (before 1855-?) would work as a conductor in St. Petersburg, Russia, and the youngest brother, Alwin Schroeder (1855-1928) was a German-American cellist best known as leading cellist in the Boston Symphony. In his early youth Karl studied with Friedrich Kiel and was appointed to the Sondershausen Hofkapelle at the age of 14. He toured Europe with his family's acclaimed string quartet traveling throughout Germany, Italy, France, Belgium, and even as far as St. Petersburg. In 1872 he was appointed Kapellmeister of the Kroll Oper in Berlin; late that year, the string quartet was disbanded on his appointment to the Brunswick Hofkapelle commencing in 1873.