The harbour known by several names—Portus Novus, Harbour of Sophia, and Portus Juliani—was located at Kadriga Limani. This identification is certain because both Portus Novus and the Harbour of Sophia were described as being at the foot of the steep slope below the Hippodrome, which matches the location of Kadriga Limani. The geography of the area supports this conclusion Fires and Buildings Near the Harbour of Julian.
Location and Geography
Another way to confirm the site is by examining the Portus Juliani, which is identical to Portus Novus and the Harbour of Sophia. Historical sources describe it as a large harbour on the southern side of Constantinople, near the Church of Saints Sergius and Bacchus. The harbour could not have been east of the church because the coastline in that direction could not support a large harbour. There are no traces of such a harbour in that area. Therefore, the Portus Juliani must have been west of the church, which aligns perfectly with the location of Kadriga Limani.
Construction by Emperor Julian
The harbour was constructed by Emperor Julian during his ten-month stay in Constantinople on his way to Persia for war. Julian wanted to improve the city and make it more convenient for trade. Next to the harbour, he built a crescent-shaped portico called the Sigma, named after its curved shape. This portico provided space for merchants and traders who frequently visited the harbour.
A statue of Julian was also placed near the harbour. It remained there until 535 AD when an earthquake destroyed it. Afterward, the statue was replaced by a cross. These constructions reflect Julian’s commitment to the city, showing that he cared for Constantinople not only as an emperor but also as his hometown Tour Guide Istanbul.
Significance of the Harbour
The Portus Juliani was an important centre of trade and commerce. Its strategic position on the southern coast allowed ships easy access to the city and the Sea of Marmara. By building the harbour and the surrounding facilities, Julian ensured that Constantinople could support growing commercial activity. His works also demonstrated the combination of practical planning and personal affection for the city, improving both its economy and its beauty.
In conclusion, historical and geographical evidence confirms that the harbour known under the names Portus Novus, Harbour of Sophia, and Portus Juliani was located at Kadriga Limani. Constructed by Emperor Julian, it was not only a functional port but also a site enhanced with architectural features and monuments. This harbour played a significant role in trade, while also reflecting the emperor’s personal devotion to Constantinople.
