ACCORSO (Accuxslus), MARIANGELO (c. 1490--1544)  , Italian critic, was born at Aquila, in the kingdom of Naples . He was a great favourite with Charles V., at whose court he resided for thirty-three years, and by whom he was employed on various foreign missions . To a perfect knowledge of Greek and Latin he added an intimate acquaintance with several modern languages . In discovering and collating ancient manuscripts, for which his travels abroad gave him special opportunities, he displayed uncommon diligence . His work entitled Diatribae in Ausonium, Solinum et Ovidium (1524) is a monument of erudition and critical skill . He was the first editor of the Letters of Cassiodorus, with his Treatise on the Soul (1538); and his edition of Ammianus Marcellinus (1533) contains five books more than any former one . The affected use of antiquated terms, introduced by some of the Latin writers of that age, is humorously ridiculed by him, in a dialogue in which an Oscan, a Volscian and a Roman are introduced as interlocutors (1531) . Accorso was accused of plagiarism in his notes on Ausonius, a charge which he most solemnly and energetically repudiated .