Franz (Ignaz) Danzi Franz Ignaz Danzi (15 June 1763 – 13 April 1826) was a German cellist, composer and conductor, the son of the Italian cellist Innocenz Danzi (1730–1798) and brother of the noted singer Franzeska Danzi. Danzi lived at a significant time in the history of European music. His career, spanning the transition from the late Classical to the early Romantic styles, coincided with the..