compared for scale with the person standing to the left of the palm the trunk is massive! My fav's are madjool dates...could it be???

No idea what they are Lori and Marguerite. By the way, this old park was built admist Roman ruins, (on the left you can just about see a tip of Mecenate's Auditorium) - on the Esquiline Hill in the 1880s, so whether these palms are as old I don't know .... but magnificent all the same ....