Caracalla's mother, Julia Domna, was a powerful and influential figure during his reign. She was a patron of the arts and a skilled diplomat who helped shape her son's policies and political agenda. In particular, she is believed to have encouraged Caracalla to extend Roman citizenship to all free inhabitants of the empire, a move that helped to solidify his power and increase his popularity with the masses. Her influence over her son's reign was so significant that after Caracalla's death, she was granted the rare honor of being deified by the Roman Senate.