St Symeon (modern name Samandağ or Suadiye) was the medieval port of Antioch, located on the mouth of the Orontes River. It may be named after Saint Simeon Stylites the Younger, who dwelt on a mountain only six miles from St Symeon, or the original Saint Simeon Stylites, who was buried in Antioch. Seleucia Pieria had been the Roman port of Antioch, but silting and an earthquake had rendered it unusable.