Flavius Metellus (c. 90s BCE – 47 BCE), also known as The Lion, was the Roman proconsul of the province of Kyrenaika. He was also a leader of the Order of the Ancients during the reign of Cleopatra and a close ally of Julius Caesar.
Flavius was born in the Roman Republic to an old patrician family which had lost much of its wealth. He was later married to an unknown woman who he had a son with. Flavius later married another woman named Porcia Orestilla, which helped to restore his family's treasuries.
Flavius later rose through the ranks of the Roman army and became a close ally to Julius Caesar. Due to his distinguished military career, he was later selected to become the proconsul of Cyrenaica, a position he held until his death.
Quest for the vault
By 49 BCE, he joined the Order of the Ancients and became one of its leaders. That year, he along with his fellow members travelled to Siwa having discovered an Isu vault beneath the Temple of Amun. 
Equipment and Skills
Upon possessing the Oracle's Relic, he displayed a number of miraculous abilities. He has shown the power to create tangible-holograms of his former brothers which attack Bayek. He could also turn invisible, project golden energy and fire a kinetic blast which slows down Bayek momentarily. He is also a skilled swordsman and hand-to-hand combatant.
He is a strong political leader and mastermind, having become the leader of the Order of the Ancients due to his cruel doings. He was also able to use his influence upon Caesar to spare Septimius, despite the fact that Septimius attacked Roman Forces.