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, indicating that he and Reyna might have had a relationship. 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 did not know why. However, he seems to be interested in pursuing a relationship with Piper.

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 that she doesn't know him, but Percy believed that this 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.

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 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.
 * In her portrait, there are three words: Justitia Fulmentum Regni; which translates as "a support for the kingdom of justice."
 * She has two automaton dogs, Aurum and Argentium with ruby eyes that serve as her bodyguards.