What is Dantes revenge for Villefort?

The Count destroys de Villefort by introducing Andrea Calvacanti into society. Benedetto, alias Calvacanti, is the son of Monsieur de Villefort and Madame Danglars. Long ago, Villefort had attempted to bury the newborn baby alive, but Bertuccio, now Monte Cristo's servant had dug the baby up and saved it. Villefort's crime is revealed in a court of law, since Calvacanti is on trial as an escaped convict. Villefort is thus destroyed. Villefort goes insane. Please check out this excerpt at the GradeSaver site at the source-link below.