Analysis of information sources in references of the Wikipedia article "ميندوغاس" in Arabic language version.
The Volhynian Chronicle gives the following description of Mindaugas' activity: Mindaugas "was a duke in the Lithuanian land, and he killed his brothers and his brothers' sons and banished others from the land and began to rule alone over the entire Lithuanian land. And he started to put on airs and enjoyed glory and might and would not put up with any opposition."
The Volhynian Chronicle gives the following description of Mindaugas' activity: Mindaugas "was a duke in the Lithuanian land, and he killed his brothers and his brothers' sons and banished others from the land and began to rule alone over the entire Lithuanian land. And he started to put on airs and enjoyed glory and might and would not put up with any opposition."