Note 87 — SECOND PART. The Astronomy of Dante.
Reading edition
“Torno a Ravenna e de lì non mi parto (I am going back to Ravenna, and shall not leave it again), is a line in the Acerba which Cecco d’ Ascoli puts into the mouth of Dante, as though from a letter written to himself from the divine poet at the time” (about the year 1319). Dante and Giovanni del Virgilio, by Wicksteed and Gardner, p. 84.