Pax is the Roman goddess of peace.
"On the Campus Martius (Field of Mars, the god of war), she had a minor sanctuary called the Ara Pacis, dedicated to her on January 30, 9 B.C. Her temple was on the Forum Pacis (Templum Placis) built on the site of a meat market by Vespasian, which was dedicated in A.D. 75. She was depicted in art with olive branches, a cornucopia and a sceptre. Pax became celebrated (in both senses of the word) as Pax Romana and Pax Augusta from the 2nd century B.C.