Mazaeus-Mithridates Gate is the triple gateway next to the Celsus Library which opens into the commercial agora forming its southeast gate. According to the inscriptions in Latin, it was built by two freed slaves Mazaeus and Mithridates in honor of Augustus, his wife Livia, his daughter Julia and his son-in-law Agrippa. According to the inscriptions in Greek, Mazaeus, and Mithridates dedicated the gate to their masters. The reconstruction of the gate was only completed in 1988. Missing parts were replaced with concrete and its surface was plastered. Mazaeus-Mithridates Gate is earthquake-proof like the Celsus Library.