Note 331 — Chapter XVI · THE CITY OF ROME IN THE MIDDLE AGES.
Reading edition
The Germans called this hill, which is the highest in or near Rome, conspicuous from a beautiful group of stone-pines upon its brow, Mons Gaudii; the origin of the Italian name, Monte Mario, is not known, unless it be, as some think, a corruption of Mons Malus.
It was on this hill that Otto the Third hanged Crescentius and his followers.