The Chronicle of the Priest of Duklja records that "King Predimir" & his wife had four sons "Chlarimir…Boleslav…Dragislav…Svevlad" among whom he divided his territories. The Chronicle of the Priest of Duklja records that the seven sons of Leghec, son of Kresimir, killed the sons and grandsons of "King Predimir" except for "a son of Boleslav named Sylvester".
Married Castreca, daughter of ---. The Chronicle of the Priest of Duklja records that, after the massacre of his uncles, "a son of Boleslav named Sylvester" fled with "his mother Castreca to Lausium which is now called Ragusium". 1