Milonia Caesonia was Roman empress as the fourth and last wife of the Roman emperor Caligula from their marriage in AD 39 until they were both assassinated in 41.
Milonia Caesonia from a coin minted by Herod Agrippa
Gaius Caesar Augustus Germanicus, better known by his nickname Caligula, was Roman emperor from AD 37 until his assassination in AD 41. He was the son of the Roman general Germanicus and Augustus' granddaughter Agrippina the Elder, members of the first ruling family of the Roman Empire. He was born two years before Tiberius was made emperor. Gaius accompanied his father, mother and siblings on campaign in Germania, at little more than four or five years old. He had been named after Gaius Julius Caesar, but his father's soldiers affectionately nicknamed him "Caligula".
Marble bust, 37–41 AD
A Roman caliga, after which the name Caligula derived. This piece was excavated near Xanten, where Caligula was stationed with his parents during military campaigns in Germania
Reconstruction drawing of the Villa Jovis on Capri, where Caligula grew up at the court of Tiberius
Caligula Depositing the Ashes of his Mother and Brother in the Tomb of his Ancestors, by Eustache Le Sueur, 1647.