In the testament of Bolesław III Wrymouth, which initiated the period of fragmentation of Poland (1138–1320), the western part of Greater Poland (including Poznań) was granted to Mieszko III the Old. The eastern part, with Gniezno and Kalisz, was part of the Duchy of Kraków, granted to Władysław II the Exile. However, for most of the period the two parts were under a single ruler, and were known as the Duchy of Greater Poland (although at times there were separately ruled duchies of Poznań, Gniezno, Kalisz and Ujście). The region came under the control of Władysław I the Elbow-High in 1314, and thus became part of the reunited Poland of which Władysław was crowned king in 1320.