Was Abbe Faria a mad prisoner too?

Note, the Abbe was not mad, only said to be mad.

From the text:

“Yes; we have an instance here; it was by always offering a million of francs to the governor for his liberty that an abbé became mad, who was in this chamber before you.”

“Threats!” cried the jailer, retreating and putting himself on the defensive; “you are certainly going mad. The abbé began like you, and in three days you will be like him, mad enough to tie up; but, fortunately, there are dungeons here.”