The Zealot coup took place against the backdrop of the
First Jewish–Roman War (66–73 CE), which began with mounting tensions between Jews and Greeks in
Caesarea Maritima, and was inflamed by the actions of Roman prefect
Gessius Florus, whose seizure of Temple funds sparked
riots and mass violence in Jerusalem. After Florus fled the city and King
Agrippa II failed to calm the unrest,
Eleazar ben Hananiah, a temple official, ceased the traditional
sacrifices offered on behalf of the emperor—an open rejection of Roman authority. Soon after, Jewish rebels seized key strongholds in Jerusalem, burned official buildings, and killed the Roman garrison. The
Sicarii, a radical group of Jewish assassins, executed the high priest and his brother, but after their leader was killed, they fled to
Masada. In response,
Cestius Gallus, the Roman governor of Syria, marched on Jerusalem but, after initial successes, unexpectedly retreated. His withdrawal ended in disaster at
Bethoron. After Gallus' defeat, a popular assembly convened at the
Temple in Jerusalem and established a
provisional government. Leadership was assumed by
Ananus ben Ananus, a
Sadducee and former
High Priest, who shared power with the noble
Pharisee Joseph ben Gurion. However, unity among the rebels proved elusive, as
John of Gischala and
Simon bar Giora led independent factions in
Galilee and
Judea, respectively, operating outside the authority of the central leadership. In 67 CE, the Roman general
Vespasian was appointed by Emperor
Nero to crush the rebellion. Upon arriving in Judaea, Vespasian launched a
systematic campaign through Galilee, capturing towns and driving many rebels and civilians to seek refuge in Jerusalem. The influx of refugees and armed groups turned the city into a powder keg of political instability and factional conflict. Among those arriving was John of Gischala, who likely reached Jerusalem in autumn 67 CE. According to Josephus, John of Gischala, who secretly aspired to rule Jerusalem, had cultivated a friendship with Ananus, though he betrayed him by revealing his secrets to the Zealots: Opposing the moderate government, the Zealots gained control of the Temple, carried out purges of suspected collaborators. They also broke with tradition by appointing the high priest through a lottery, selecting
Phannias ben Samuel from a remote village with no priestly lineage or knowledge of the role. These developments set the stage for the violent power struggle that would soon culminate in the Zealot coup. ==Siege==