 By the accession of Andronicus in 1328, the Imperial territories in Anatolia had dramatically shrunk from almost all of the west of modern Turkey forty years earlier to a few scattered outposts along the Aegean Sea and a small core province around Nicomedia within about 150 km of the capital city Constantinople.Recently the Turks had captured the important city of Prusa (Bursa) in Bithynia.Andronicus decided to relieve the important besieged cities of Nicomedia and Nicaea, and hoped to restore the frontier to a stable position.