Roman Legacy
Roman legacies, such as Luca Grace, are a subset of legacies who train at Camp Jupiter, which is located near San Francisco. They are born when a Roman demigod conceives a child with a mortal, when they conceive a child with another Roman demigod or when they conceive a child with a different subset of demigod and the child inherits the Roman side of their heritage.
Like Roman demigods, they naturally speak and read Latin, as opposed to Greek legacies who can speak and read Ancient Greek. They are also trained in the style of the Roman legions instead of Greek warfare. They are also allowed to live in New Rome and start their own families.
Similarly to Roman demigods, as they are allowed to be in the Twelfth Legion Fulminata, Roman legacies start their lives at the Wolf House and train under Lupa before making their way to camp to join the legion. Roman legacies are typically born in New Rome as the children of Roman demigods who are part of the Legion themselves. As such, they will actually leave Camp Jupiter to go to the Wolf House and then return to the camp if Lupa deems them worthy.