Lepidi, gens Aemilia (House Aemilius Lepidus) - as there is no clear sigil for Aemilii Lepidi, I chose the most commonly known in Rome achievement of that family - foundation of Basilica Aemilia the dynastic Coat of Arms for House Aemilius Lepidus will probably feature the facade of that building as it looked in times of Lepidus. He also frequently placed the lion on coins he released. gens Antonia (House Antonius) - the personal symbol of Mark Antony was a lion, associated with the fact that he claimed his descent from Heracles himself to support this claim he ordered his wild animal tenders to train lions so he could use them in place of horses in his chariot. Crassi, gens Licinia (House Licinius Crassus) - something associated with gold or money, but not specified yet. They will also have a unique coat of arms that has two quarters copied from the Dynasty coat of arms. Pompeys, gens Pompeia (House Pompeius Magnus) - hard to tell, there wasn't any clear symbol related to both of the important Pompeys, the only thing that comes to my mind is either Neptune's Trident or the image of Neptune himself crushing the boat under his feet, but both of them are actually associated with Sextus and their only connection to Gnaeus is that Sextus placed them along with his father's image on his coins. Crusader Kings 2 Arsenal of Democracy Europa Universalis 2. Caesars, gens Iulia (House Iulius Caesar) - here you go

Hieronids - golden crown on the blue background (the story about Archimedes, crown made of gold and 'Eureka!' comes from the time of Hiero II's crowning as king of Sicily)

Agathoclids - clay vase (since Agathocles of Syracuse was supposed to be a son of potter), black background (Agathocles wasn't much of an honourable ruler, to the point that Machiavelli himself wrote about him) Dionysii - star placed between two dolphins facing each other (dunno where i t came from, this symbol just appeared on some of their coins), purple background (purple is the colour of power and majesty and Dionysius the Elder did not hestitate to increase both of his) Deinomenids - head of Arethusa (a nymph associated with Syracuse, frequently appearing on coins from time of Deinomenid reign), azure background I've been thinking for a while about CoAs for historical dynasties in AK.

Crusader kings 2 coat of arms