Ignaz or Ignace Vitzthumb was an Austrian musician, composer and conductor active in the Austrian Netherlands. He was also music director of the La Monnaie theatre in Brussels. Vitzthumb was born in Baden bei Wien. Arriving in Brussels in 1735 at the age of 11, he entered the service of archduchessMaria Elisabeth of Austria as a child-singer in her choir. Taught by Jean-Joseph Fiocco, then choirmaster of the Brussels chapel royal, Vitzthumb became a court drummer at sixteen, a post he held for more than 40 years alongside other roles. His half-brother, François-Antoine Vitzthumb, was a trumpeter in the court and his son Paul Vitzthumb (1761–1838) succeeded him as court drummer. After the War of the Austrian Succession, in which he had served in a regiment of Hungarian hussars, he returned to Brussels and took part in several chambers of rhetoric and compagnies bourgeoises, of which there were Francophone as well as Flemish versions. He showed off his talents as a violinist, conductor and theatre director, and was a member of the Concert bourgeois. He is also mentioned among the court musicians as a composer, tenor and violinist in 1758 and 1759, and as a composer from 1760 to 1775.