▁being ▁the ▁second ▁oldest ▁continu ously ▁running ▁school ▁in ▁the ▁world . ▁Ro chester ▁Castle , ▁built ▁by ▁Bishop ▁G und ulf ▁of ▁Ro chester , ▁has ▁one ▁of ▁the ▁best ▁preserved ▁keeps ▁in ▁either ▁England ▁or ▁France , ▁and ▁during ▁the ▁First ▁Bar ons ' ▁War ▁( 1 2 1 5 – 1 2 1 7 ) ▁in ▁King ▁John ' s ▁reign , ▁bar onial ▁forces ▁captured ▁the ▁castle ▁from ▁Arch bishop ▁Stephen ▁Lang ton ▁and ▁held ▁it ▁against ▁the ▁king , ▁who ▁then ▁bes ie ged ▁it . ▁ ▁Ro chester ▁and ▁its ▁neighb ours , ▁Ch ath am ▁and ▁G illing ham , ▁St ro od ▁and ▁a ▁number ▁of ▁out lying ▁villages ▁form ▁a ▁single ▁large ▁urban ▁area ▁known ▁as ▁the ▁Med way ▁Town s ▁with ▁a ▁population ▁of ▁about ▁ 2 5 0 , 0 0 0 . ▁These ▁places ▁now ad ays ▁make ▁up ▁the ▁Med way ▁Unit ary ▁Author ity ▁area . ▁It ▁was , ▁until ▁ 1 9 9 8 , ▁under ▁the ▁control ▁of ▁Kent ▁County ▁Council ▁and ▁is ▁still ▁part ▁of ▁the ▁cer emon ial ▁county ▁of ▁Kent , ▁under ▁the ▁latest ▁Lie uten an cies ▁Act . ▁ ▁Top onym y ▁The ▁Rom ano - B rit ish ▁name ▁for ▁Ro chester ▁was ▁D uro b riv ae , ▁later ▁D uro b riv is ▁c . ▁ 7 3 0 ▁and ▁Dor obre vis ▁in ▁ 8 4 4 . ▁The ▁two ▁commonly ▁c ited ▁orig ins ▁of ▁this ▁name