Caius Caesar Galigula, from "Twelve Caesars on Horseback"

Sergius Galba, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Octavius Caesar Augustus, from "Twelve Caesars on Horseback"

Abraham de Bruyn

C. Julius Caesar, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Flavius Vestasianus, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Tiberius Claudius Nero, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Plate 6: Emperor Nero on Horseback, from 'The First Twelve Roman Caesars', after Tempesta

Matthäus Merian the Elder, After Antonio Tempesta

Plate 8: Emperor Otho on Horseback, from 'The First Twelve Roman Caesars', after Tempesta

Matthäus Merian the Elder, After Antonio Tempesta

Emperor Vespasian on Horseback, from the series The First Twelve Roman Caesars, plate 11

Matthäus Merian the Elder, After Antonio Tempesta

Claudius Tiberius Nero, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Plate 8: Emperor Otho on Horseback, from 'The First Twelve Roman Caesars'

Antonio Tempesta, Giovanni Battista di Lazzaro Panzera da Parma

A Vitellius, from "Twelve Caesars on Horseback"

Abraham de Bruyn

Plate 5: Emperor Claudius on Horseback, from 'The First Twelve Roman Caesars' after Tempesta

Matthäus Merian the Elder, After Antonio Tempesta