Pierre Corneille was a French tragedian. He is generally considered one of the three great 17th-century French dramatists, along with Molière and Racine.
As a young man, he earned the valuable patronage of Cardinal Richelieu, who was trying to promote classical tragedy along formal lines, but later quarrelled with him, especially over his best-known play, Le Cid, about the medieval Spanish warrior, which was denounced by the newly formed Académie française for breaching the unities. He continued to write well-received tragedies for nearly forty years.