Lucius Caesar - Caesar of Imperium Romanum from 17 BC to 2 AD
Lucius Caesar was the grandson of Augustus. The son of Marcus Vipsanius Agrippa and Julia the Elder, Augustus' only daughter, Lucius was adopted by his grandfather along with his older brother, Gaius Caesar.

As the emperor's adopted sons and joint-heirs to the Roman Empire, Lucius and Gaius had promising political and military careers. However, Lucius died of a sudden illness on 20 August AD 2, in Massilia, Gaul, while traveling to meet the Roman army in Hispania. His brother Gaius also died at a relatively young age on 21 February, AD 4.
Lucius Caesar
Caesar Lucius Caesar of the Roman Empire

Obverse: laureate head right; CAESAR AVGVSTVS__DIVI F PATER PATRIAE
Reverse: Lucius Caesar and Caius Caesar facing, wearing toga, holding shield on the ground and spear, simpulum and lituus (b9) above; AVGVSTI F COS DESIG PRINC IVVENT / C L CAESARES
Ref: RIC I 207, RSC I 43, BMCRE I 533, B...
Obverse: CAESAR AVGVSTVS DIVI F PATER PATRIAE, Head of Augustus facing right, wearing laurel wreath
Reverse: C L CAESARES AVGVSTI F COS DESIG PRINC IVVENT, Gaius and Lucius Caesar standing, each, wearing togas, resting hand on shield and spear, simpulum, right, and lituus, left, flanking, left and right respectively
Ref: RIC I (2nd Ed.) Augustus 207
AE Half-Unit Pergamum
Obverse: ΓΑΙΟΝ ΚΕΦΑΛΙΩΝ, Bare head of Gaius facing right
Reverse: ΛΕVΚΙΩΝ, Bare head of Lucius facing right
Ref: RPC I 2363