The Staatskapelle Berlin is a German orchestra, the orchestra of the Berlin State Opera (Berliner Staatsoper Unter den Linden). The orchestra traces its roots to 1570, when Joachim II Hector, Elector of Brandenburg established the rules for an orchestra at his court which had been constituted, at an unknown date. In 1701, the affiliation of the Electors of Brandenburg to the king of Prussia led to the description of the orchestra as "Königlich Preußische Hofkapelle" (Royal Prussian Court Orchestra), which consisted of about 30 musicians. The orchestra became affiliated with the Royal Court Opera, established in 1742 by Frederick the Great. Noted musicians associated with the orchestra have included Carl Philipp Emanuel Bach, Franz Benda, and Johann Joachim Quantz.