Julius (birth name Jesaja Isaak) Stern (* August 8, 1820 in Breslau; † February 27, 1883 in Berlin) was a German music teacher and composer of Jewish faith. He significantly revitalized Berlin's musical life in the mid-19th century by founding the Stern'scher Gesangverein (1847), the Stern'scher Orchesterverein (1855) and the Stern'scher Konservatorium (1850), Berlin's first conservatory.

As the son of the music dealer Moritz Stern, he received his first violin lessons from his father and other institutions before he was accepted to the music section of the Royal Prussian Academy of Arts (Berlin) in 1837 and studied counterpoint and composition. He also performed as a singer (tenor). A comprehensive correspondence with Robert Schumann has survived.

After several sojourns abroad (Dresden, Paris), Stern returned to Berlin in 1846, where he founded and directed several musical institutions in the years that followed. Ultimately, he was appointed Royal Professor in 1860 for his services.

Several vocal and instrumental operas have survived from his legacy.
(Source: Wikipedia [abbreviated])

Note: Translated from a German version of Wikipedia into English.