Josias Simler hypothesized in De Alpibus Commentarius (1574) that the name Mons Silvius was readopted by T. G. Farinetti: Silvius was probably a Roman leader who sojourned with his legions in the land of the Salassi and the Seduni, and perhaps crossed the Theodul Pass between these two places. This Silvius may have been that same Servius Galba whom Caesar charged with the opening up of the Alpine passes, which from that time onward traders have been wanting to cross with great danger and grave difficulty. Servius Galba, in order to carry out Caesar's orders, came with his legions from Allobroges (Savoy) to Octodurum (Martigny) in the Valais, and pitched his camp there. The passes which he had orders to open from there could be no other than the St. Bernard, the Simplon, the Theodul, and the Moro; it therefore seems likely that the name of Servius, whence Silvius and later Servin, or Cervin, was given in his honour to the famous pyramid. It is unknown when the new name of Servin, or Cervin, replaced the old, from which it seems to be derived.: