er am us ▁I ▁was ▁confirmed ▁in ▁power ▁and ▁his ▁family ▁was ▁left ▁to ▁rule ▁the ▁surrounding ▁region ▁under ▁Roman ▁su zer ain ty . ▁Client ▁r ul ers ▁such ▁as ▁Sam ps ic er am us ▁I ▁could ▁police ▁routes ▁and ▁preserve ▁the ▁integrity ▁of ▁Rome ▁without ▁cost ▁to ▁Roman ▁man power ▁or ▁to ▁the ▁Roman ▁tre as ury ; ▁they ▁were ▁probably ▁paid ▁for ▁the ▁privile ge . ▁ ▁Em esa ▁was ▁added ▁to ▁the ▁domains ▁of ▁Sam ps ic er am us ▁I , ▁but ▁the ▁first ▁Em es ene ▁capital ▁was ▁Are th usa , ▁a ▁city ▁north ▁of ▁Em esa , ▁along ▁the ▁Or ont es ▁River . ▁The ▁kingdom ▁of ▁Sam ps ic er am us ▁I ▁was ▁the ▁first ▁of ▁Rome ' s ▁client ▁kingdom s ▁on ▁the ▁desert ' s ▁fr ing es . ▁The ▁kingdom ' s ▁boundaries ▁extended ▁from ▁the ▁Be q aa ▁Valley ▁in ▁the ▁West ▁to ▁the ▁border ▁of ▁Pal my ra ▁in ▁the ▁East , ▁from ▁Y ab r ud ▁in ▁the ▁South ▁to ▁Are th usa ▁in ▁the ▁North ▁and ▁H eli opol is . ▁During ▁his ▁reign , ▁Sam ps ic er am us ▁I ▁built ▁a ▁castle ▁at ▁Sh mem is ▁on ▁top ▁of ▁an ▁ext inct ▁vol cano ▁and ▁re built ▁the ▁city ▁of ▁Sal ami y ah ▁which ▁the ▁Rom ans ▁incorpor ated ▁in ▁the ▁ruled ▁territory . ▁In ▁time , ▁Sam ps ic er am us ▁I ▁established ▁and ▁formed ▁a ▁powerful ▁r uling