Ptolemaic Baris
The Ptolemaic Baris (also Ptolemaic Acra) was a citadel maintained by Ptolemaic Egypt during its rule of Jerusalem in the 3rd century BC. Described by only a few ancient sources, no archaeological remains of the citadel have been found and much about it remains a matter of conjecture. == Possible Persian origins == After the conquest of Babylon by the Persian Empire, Cyrus the Great allowed the exiled part of the Jewish population to return to their native land and rebuild Jerusalem, sacked by Nebuchadnezzar II in 586 BC. While rebuilding the city's fortifications, the Persian administration also constructed a new citadel north of the Temple Mount enclosure, as part of a general Persian effort to bolster the empire's defences.