Roman Gods

Janus, a god that is only Roman

The Roman gods are the more disciplined, militaristic, and warlike version of their Greek counterparts.

Characteristics

Though belonging to the same race of the Greek gods, the Roman gods as numerous differences of their original counterparts due to the more formal and serious vision that the Romans had from them. Due to being seen as more mysterious and dedicated to their roles than the Greek gods, they do not visit their demigod offspring nor mortals very often, nor have many children with mortals, unlike that of their Greek forms. The Roman version of the Greek gods are also more skilled in the ways of combat, and seem to care more about honor than personal code, matching with the Roman culture. Some Roman gods do not even have a Greek aspect, being born within the Roman religion. However, even the original gods can have distinct behaviors on their Roman form. This is evident in The Lost Hero, where Clovis mentions that if he had to meet Juno, he would prefer her as Hera rather than Juno, and also that Somnus (Hypnos' Roman form), killed those who sleep during their work, unlike his Greek form who is extremely lazy.

Clovis explained that the reason of such different behavior is because the gods' Roman counterparts are more disciplined and warlike, and therefore stricter than their Greek aspects. He also went on to claim that some gods behavior can be so different in their Roman form that, rather than being a distinct aspect, they may became a distinct personality of such gods. This is evident on Mars, who is a dedicated strategist and dislikes unnecessary bloodshed, in stark contrast to Ares, his true Greek form, whom loves the idea of combat and violence. Also, as shown in The Son of Neptune some Greek gods become less respected when transitioned to Roman. In the case of Poseidon becoming Neptune, the Romans tended to fear the sea and so Neptune was less respected. Also shown, some gods become more respected such as Mars who is respected to the point where only Jupiter is considered above him. As a result of this transition between aspects, the gods domain change or some become more dominant as the case of Neptune being more focused on horses rather than the Sea (as Poseidon) and Pluto being more focused on riches rather than the underworld (as Hades).

However as revealed in The Mark of Athena there are some gods/goddesses that have so few different changes between Greek and Roman even they don't consider themselves changed. For example Nemesis and Aphrodite/Venus state because Revenge and Love are universal they don't change between the different aspects. Heracles/Hercules mentioned as well that he didn't feel changed very much between his Greek and Roman aspects although most people refer to him by Roman aspect "Hercules".

It is noted in The House of Hades that minor gods and Goddess are less affected if there war between Greek and Roman with only mild headaches as a result of less prayers and worship.

In The Blood of Olympus it was revealed that Artemis and Apollo could escape going crazy during the war between Greek and Roman children by going to their birthplace Delos. However leaving the area would cause them to lose control and have their powers nullified.