▁up ▁an ▁older ▁name ▁of ▁one ▁of ▁the ▁districts ▁of ▁the ▁civ itas , ▁" To x and ria ", ▁even ▁though ▁the ▁original ▁To x and ri ▁may ▁not ▁have ▁lived ▁there ▁any ▁more . ▁The ▁southern ▁or ▁" H asp eng ouw " ▁part ▁of ▁Belg ian ▁Lim burg ▁remained ▁more ▁heavily ▁Roman ised , ▁but ▁eventually ▁also ▁became ▁a ▁core ▁land ▁of ▁the ▁Fran ks . ▁The ▁two ▁east - west ▁Roman ▁routes ▁through ▁T ong eren , ▁mentioned ▁above , ▁became ▁a ▁front ▁line ▁of ▁defense ▁for ▁a ▁while , ▁and ▁are ▁sometimes ▁referred ▁to ▁as ▁the ▁L imes ▁Belg icus . ▁Gregory ▁of ▁T ours ▁reports ▁that ▁it ▁was ▁from ▁the ▁area ▁of ▁To x and ria ▁border ing ▁T ong eren ▁that ▁Ch l odio , ▁in ▁the ▁ 5 th ▁century , ▁launched ▁the ▁Fran ks ▁into ▁military ▁campaign s ▁of ▁con quest ▁in ▁northern ▁Ga ul , ▁soon ▁to ▁become ▁France ▁or ▁" Fran cia ", ▁the ▁country ▁of ▁the ▁Fran ks . ▁ ▁In ▁Mer oving ian ▁times , ▁Belg ian ▁Lim burg ▁was ▁part ▁of ▁Aust ras ia , ▁and ▁in ▁particular ▁it ▁appears ▁that ▁parts ▁of ▁the ▁H asp eng ouw ▁were ▁under ▁the ▁control ▁of ▁the ▁Pi pp in id ▁family , ▁and ▁later ▁their ▁Carol ing ian ▁descend ants . ▁This ▁family ▁were ▁" may ors " ▁of ▁the ▁Mer oving ian ▁court ▁until ▁they ▁eventually ▁took ▁over ▁rule ▁more ▁open ly . ▁P ep in ▁the ▁short ▁became ▁the