The obelisk was discovered in 1587 , broken into three pieces , together with the Lateran Obelisk ; .
Obelisk was erected in the Piazza del Popolo by Domenico Fontana in 1589 , at the command Pope Sixtus V .
The obelisk was discovered in 1587 , broken into three pieces , together with the Lateran Obelisk ; and it was erected in the Piazza del Popolo by Domenico Fontana in 1589 , at the command Pope Sixtus V .