Kurshunlu (In Turkish Kurşunlu) is a coastline within the border of Gemlik county in Bursa . Latitude: 40° 21' 32 N, Longitude: 29° 1' 21 E . it is one of the ancient sub-districts of the Bursa . it is placed between hills about 1000 ft. and The Marmara Sea . In Kurshunlu , There is a village above the hills called Gündoğdu and There is an ancient monastery called Hagios Aberkios And this monastery is thought to have been builded in 1196-1209 by ancient Greeks before Ottoman's Period . but it is not known by many people and lies there abandoned . according to the new project of The Kurshunlu municipality it is declared that the Hagios Aberkios will soon be turned into a museum .