Most know Kardia from the widespread hemidrachms that are usually labeled as Chersonesos.
Kardia played a relatively unknown but key role in the trajectory of Philip II and Alexander III. Perhaps the best article I’ve read on the subject is The Coinage of Kardia by Julia Tzvetkova. The city was originally founded as a colony of Miletos and Klazomenai. You can see the influence for the lion on this coin from Miletos.
Later on, it was additionally colonized by Athens, which would play a growing role in the city. At some point, Kardia was controlled by the Odrysian kings – especially Kotys I and his son Kersebleptes. It’s widely believed that some of their coinage was minted in Kardia, and it was one of their principal cities.
When Athens gained influence in Thrace, Kardia was always the exception. All that changed, though, with a new guy on the field – Philip II.
Through diplomacy and arms, Philip II overran the Odrysian kings. Per Tzvetkova, this is when the Kardia bronzes began minting. Before then, they minted Odrysian coins. Kardia itself was never besieged by Philip, but instead signed an agreement with him. Through the reigns of Philip and Alexander, it remained independent but was a strong ally of Macedonia. When Athens attempted to interfere, Philip was quick to act, resulting in a famous speech from Demosthenes predicting Philip‘s ultimate goal.
Were my copy a bit sharper, you would see a spear in the lion’s mouth. You can clearly see a spear below the lion. Tzvetkova speculates that this image, similar to those of Amyntas III, could emphasize Kardia’s friendship with Macedon, but states that there’s no way to know for sure. In fact, due to the lack of find data, she found it wasn’t possible to give any ordering of the bronze coinage or more specific dates.
The coinage of Kardia likely ended with the city’s destruction by Lysimachos in 309 BCE. The populace was then moved to the newly created Lysimacheia.
Perhaps even more telling of how close Kardia and Macedonia were was the presence of several Kardians among Alexander‘s most trusted companions.
Eumenes – He was Alexander‘s scribe and later played famous games in the desert with Antigonos I Monophthalmos.
Hieronymos – A famous historian for Alexander, Eumenes, and Antigonos. Sadly, his works are now out of print.
Relevant Resources
The Coinage of Kardia by Julia Tzetkova
Kardia founded by settlers from Miletos and Klazomenai.
Kardia is founded by settlers from Miletos and Klazomenai.
Miltiades, the son of Kimon of Athens settles with colonists in Kardia.
Kardia is the only city in the Chersonese not destroyed by Persia.
Kardia comes under Odrysian control.
Kersebleptes, in a bid against Philip II, turns over all the cities of the Chersonese to Athens except for Kardia.
Birth of historian Hieronymos in Kardia, who documented the history of Eumenes and Ptolemy I.
Kardia signs and agreement with Philip II.
Philip II grants Apollonides governing power in Kardia.
Kardia is ruled by the tyrant Hekataios.
Lysimachos obtains control over parts of Thrace, including Abdera. He destroys Kardia to provide inhabitants for Lysimachia.
Brutus and Cassius march through Maroneia, Lysimachia, and Kardia to the Gulf of Melas.