From Guild Wars 2 Wiki
Port Noble is a former Krytan sea port, and was one of the few ports to have survived the Rising of Orr's tidal wave. By 1229 AE, King Baede had closed it off to profiteers and turned it into a military harbor. Around 1237 AE, it had a new dock built, and in 1256 AE there were rumors that Prince Edair was gathering a navy there to ready for an attack on Lion's Arch. Some ships were flying the colous of Port Noble during the Great Krytan Blockade in 1256 AE, but by 1325 AE it was in ruins.