Note 046
See Donat. Roma Antiqua,1. iii. c. 14,1. iv. c. 12; and the learned, though confused, Dissertation of Bargaeus on Obelisks, inserted in the fourth volume of Graevius's Roman Antiquities, p. 1897-1936. This dissertation is dedicated to Pope Sixtus V., who erected the obelisk of Constantius in the square before the patriarchal church of St. John Lateran.
Note to Chapter 19 of DECLINE & FALL by Gibbon