1911 Encyclopædia Britannica/Porphyrio, Pomponius

PORPHYRIO, POMPONIUS, Latin grammarian and commentator on Horace, possibly a native of Africa, flourished during the 2nd century A.D. (according to others, much later). His scholia on Horace, which are still extant, mainly consist of rhetorical and grammatical explanations. It is not probable that we possess the original work, which must have suffered from alterations and interpolations at the hands of the copyists of the middle ages, but on the whole the scholia form a valuable aid to the student of Horace.

Ed. W. Meyer (1874); A. Holder (1894); see also C. F. Urba, Meletemata porphyrionea (1885); E. Schweikert, De Porphyrionis . . . scholiis Horatianis (1865); F. Pauly, Quaestiones criticae de . . . Porphyrionis commentariis Horatianis (1858).