Reyna Ramírez-Arellano

Reyna is a Roman Demigod and the Praetor of the Twelfth Legion at Camp Jupiter.

The Lost Hero
When Jason's memory comes back to him he remembers Reyna to be one of his friends. He says that he "definitely" remembers Reyna, heavily implying that there may have been something between them, but the exact nature of their relationship is left ambiguous. He says her memory made him question what he felt about Piper, and wonder if he was doing something wrong. Even though the memory of her seems unclear, she seemed really important to him though he doesn't know why.

The Son of Neptune
When Juno appeared in her true form and presented Percy Jackson as a son of Neptune to the other camps, Reyna was one of the campers in the area. Reyna sounded like she knew him somehow and looked at him as if she had seen him in her nightmares. She called herself the Praetor of the Twelfth Legion and said that she doesn't know him, which Percy believed was a lie, but was unwilling to argue with her in front of her soldiers. She then tells Hazel to take him inside so she could interrogate him to find out if he was a new recruit or an enemy to kill. Before leaving Juno says Reyna and Percy will have "such fun together."

Appearance
Percy describes Reyna as being about his age with piercing dark eyes and long black hair. Like all demigods of Camp Jupiter she has SPQR branded on her arm but without any visible bar lines. She wears a regal purple toga decorated with gold metals over her own golden armor.

Trivia

 * Reyna's name is Spanish for "Queen."
 * Her two dogs, Aurum and Argentium, are similar to the ones given to King Alcinous of Phaeacia by Hephaestus in Greek Mythology.
 * On her official portrait, there is writing engraved on a wall, "Iustitia Fundamentum Regni", which translates to "The Foundation of the Kingdom of Justice."
 * Her officially released portrait differs significantly from the one released on the video preview for The Son of Neptune.