Leptis or Lepcis Magna, also known by in antiquity, was a prominent city of the Carthaginian Empire and Roman Libya at the mouth of the Wadi Lebdam in the Mediterranean. Originally a 7th-century BC Phoenician foundation, it was greatly expanded under Roman Emperor Septimius Severus (r. 193–211), who was a native of the city. The 3rd Augustan Legion was stationed here to defend the city against Berber incursions. After the legion's dissolution under Gordian III in 238, the city was increasingly open to raids in the later part of the 3rd century. Diocletian reinstated the city as provincial capital, and it grew again in prosperity until it fell to the Vandals in 439. It was reincorporated into the Eastern Empire in 533 but continued to be plagued by Berber raids and never recovered its form