The Marmara Region, with a surface area of 67.000 km², is the smallest but most densely populated of the seven geographical regions of Turkey. (http://en.wikipedia.org/wiki/Marmara_Region)
The Aegean Region is one of the 7 census-defined regions of Turkey, and in Eurasia. It is located in the west part of the country: bounded by Aegean Sea on the west; Marmara Region on the north; Mediterranean Region on the south & southwest; and the Central Anatolia Region on the east. (http://en.wikipedia.org/wiki/Aegean_Region)