He was also the consulting physician of Kings Francis I, Charles V, Henry VIII and Popes Paul III, Leo X, Clement VIII and Julius III. He performed the first successful tracheotomy, and published an account of it in 1546.
This individual served as a medical advisor to notable monarchs, including Francis I, Charles V, Henry VIII, and popes such as Paul III, Leo X, Clement VIII, and Julius III. He made a groundbreaking surgical achievement by performing the first successful tracheotomy and documented his findings in 1546.