On the other hand , many aspects of the government were fashioned after following the imperial conventions .
They were titled kings , were vassals of Khitan Liao dynasty , and were careful to keep these convention in the correspondence with the suzerains .
Many aspects of the government were fashioned after following the imperial conventions .
They were titled kings , were vassals of Khitan Liao dynasty , and were careful to keep these convention in the correspondence with the suzerains .