Final answer:
Gold coins of Nero and Agrippina are reminiscent of other familial pair depictions on coins, like that of Byzantine emperor Heraclius and his son, meant to emphasize legitimacy and dynastic continuity.
Step-by-step explanation:
A gold coin of Nero and Agrippina can be compared to other historical pairs depicted on coins, such as the Byzantine emperor Heraclius the Elder and his son on the Byzantine gold solidus. Like Nero and Agrippina, who were featured together to promote a sense of familial continuity and legitimacy, Heraclius and his son were shown to emphasize dynastic succession and unity. Additionally, Roman coins often displayed images of rulers to convey political messages, similar to examples such as the portrayal of Antony and Octavian, both of whom issued coins with their own portraits after the death of Julius Caesar in an attempt to assert their legitimacy to rule.