It belongs to the latest of the Ptolemies; on the rear wall of the temple outside are representations of Cleopatra and her son. These Isis-headed columns form part of the portico built by Tiberius ; ...

posited in his book Archaeological Researches in Palestine 1873-1874 that the size of Herod’s Pillar matched the columns of the royal portico of what became known as “Herod’s Temple.” ...