Stern Conservatory
In 1844 Kullak founded the Tonkünstler-Verein in Berlin and presided over it for many years. Two years later, at the age of twenty-eight, he was made Pianist to the Prussian Court, and four years after that founded the Berliner Musikschule (also known as the Kullak Institute) in partnership with Julius Stern and Adolf Bernhard Marx. However, due to dissension in the ensuing five years, Kullak retired from his institute, which then became known as the Stern Conservatory, with Hans von Bülow as a director.