Giovanni Filippo Ingrassias

Ingrassias was a learned Sicilian physician, who, in a skilful commentary on the osteology[?] of Galen, corrected numerous mistakes. He gave the first distinct account of the true configuration of the sphenoid and ethmoid bones, and has the merit of first describing (1546) the third bone of the tympanum[?], called stapes, though this distinction is also claimed by Eustachius and Fallopius.