The Old Market existed within Capital City on the planet called Lothal. Following the Spectres' attack on the Empire Day parade within the city in 4 BBY, the Lasat Garazeb Orrelios reached out to the Twi'lek Hera Syndulla to propose an alternative meeting place. Using her codename, Spectre-2, Orrelios inquired with Syndulla if she could get to the Old Market. Upon Syndulla's confirmation, Orrelios headed for the marketplace to rendezvous with her, scaling a building's exterior in order to avoid Imperial forces. Ultimately, the two met up and provided aid to their fellow rebels so they could escape.
The animated show Star Wars Rebels featured a reference to the Old Market in "Empire Day," which was the eighth episode of the first season. It was originally broadcast on November 17, 2014.