Ger. family remembered for its connection with Beethoven who at 18 became mus. teacher in Bonn to 2 of the 4 children of a widow, Hélène Breuning. He became almost an adopted son. His closest friend was perhaps the 2nd son, Stephan (1774–1827), to whom the vn. conc. is ded. Letters from Beethoven to various members of the family are pubd.