Istanbul lies on an isthmus between the Black and the Aegean Seas.
It is the Sea of Marmara or the Marmara Sea.
The Black Sea, the Marmara Sea and the Aegean Sea are all between Turkey and mainland Europe.
They are separate bodies of water in and beyond the Mediterranean Sea
The Aegean Sea.
Leaving the Black Sea you pass the Bosporus Strait, the Sea of Marmara and the Dardanelles Strait before you reach the Aegean Sea.The Sea of Marmara (sometimes spelled Marmora) lies between the Aegean Sea and the Black Sea.
Turkey
No, it does not. The sea between Turkey and Greece is called the Aegean Sea.
Aegean sea
The city that controlled the trade routes between the Aegean and Black Sea was Athens. They gave trading privileges to other cities that they wanted to retain good will with.
The Ionian sea. Which is part of the mediteranian sea.
The arm of the Mediterranean Sea between Greece and Turkey is the Aegean Sea.
The Greek City that controlled the trade routes between the Aegean Sea and the Black Sea was Troy. The city was founded in 3000 BC and abandoned in 500 AD.