This gate is located next to the Celsus Library and opens to Agora. It was built by the slaves Mazeus and Mithridates 2000 year ago for Roman Emperor Augustus. Mazues and Mithridates were both architects.Then they became slaves of the imperial family of Augustus.
After being emancipated, they built and dedicated this gate to Augustus, to his wife Livia, to Julia and Marcus Agrippa. The inscription is carved by cupper and is written with Latin letters. This structure has been restored. The Inscription is original.