Aelivs donatvs, the note d grammarian of the fourth century of our era, wrote commentaries on Terence and Virgil. The commentary on Terence has been preserved, though in a curiously heterogeneous form which thus far has defied analysis. The most plausible supposition is that our present text is a conflation of two commentaries, one by Donatus himself, and one by Euanthius, whose work was obviously utilized for part of the introductory note on comedy. But even if this is the right statement of the question, the question remains to be solved. The problem of the commentary on Virgil is, unfortunately, more simple, or at least is universally adjudged more simple. We have extant Donatus's life of Virgil, his dedicatory letter to Lucius Munatius, and his introductory remarks on Bucolic poetry. The commentary itself, save for scattered references in later grammarians, glossaries, and commentaries, has been lost.