Lucius Orbilius Pupillus (114 BC – c. 14 BC) was a Roman grammarian and schoolmaster, best known to us from his having been the teacher of Horace. Horace called him plagosus from the severe floggings which his pupils received when they were poring over the crabbed verses of Livius Andronicus (a Greco-Roman dramatist and epic poet of the Old Latin period).

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