Andronikos II Palaiologos's reign was marked by the beginning of the decline of the Byzantine Empire. During his reign, the Turks conquered most of the Western Anatolian territories of the Empire and, during the last years of his reign, he also had to fight his grandson Andronikos in the First Palaiologan Civil War. The civil war ended in Andronikos II's forced abdication in 1328 after which he retired to a monastery, where he spent the last four years of his life.