 Kraków was a substantial addition to the resources of the incumbent, whoever it was, and was intended to put him higher in might than his vassal dukes.However the seniorate soon collapsed, with the first Senior - Władysław II the Exile - failing his bid to take over other provinces and in 1146 was expelled by his younger half-brothers, an incident which led to long-time Polish particularism.The duchy neighboured originally each of the four partition duchies of Masovia at Płock, Sandomierz, Silesia at Wrocław and Greater Poland at Poznań.