▁north ▁from ▁P embro kes hire ▁to ▁attack ▁the ▁army ▁of ▁O w ain ▁G ly nd <0xC5> <0xB5> r ▁at ▁M yn y dd ▁Hy dd gen . ▁The ▁attack ▁was ▁rep uls ed ▁with ▁heavy ▁cas ual ties ▁and ▁legend ▁has ▁it ▁that ▁English ▁prisoners ▁were ▁sp ared ▁but ▁surv iving ▁F lem ish ▁mer cen aries ▁were ▁mass ac red ▁or ▁sold ▁into ▁sla very . ▁ ▁St ▁Mary ' s ▁Church ▁origin ated ▁at ▁the ▁end ▁of ▁the ▁ 1 2 th ▁century ▁and ▁the ▁current ▁( G rade ▁I ▁listed ) ▁building ▁was ▁constructed ▁between ▁the ▁ 1 3 th ▁and ▁ 1 5 th ▁centuries ▁and ▁prom in ently ▁visible ▁at ▁the ▁top ▁of ▁the ▁High ▁Street . ▁ ▁Ha ver ford west ▁rapidly ▁grew , ▁initially ▁around ▁the ▁castle ▁and ▁St ▁Martin ' s ▁Church ▁( the ▁settlement ▁being ▁called ▁Cast let own ), ▁then ▁spread ing ▁into ▁the ▁High ▁Street ▁area . ▁It ▁immediately ▁became ▁the ▁capital ▁of ▁the ▁hundred ▁of ▁Ro ose ▁( part ▁of ▁Little ▁England ▁beyond ▁Wales ), ▁and ▁because ▁of ▁its ▁p iv otal ▁position , ▁the ▁commercial ▁centre ▁of ▁western ▁Dy f ed , ▁which ▁it ▁has ▁remained ▁to ▁this ▁day . ▁In ▁common ▁with ▁other ▁British ▁towns , ▁its ▁growth ▁was ▁rapid ▁during ▁the ▁period ▁up ▁to ▁ 1 3 0 0 , ▁and ▁its ▁extent ▁by ▁then ▁was ▁much ▁the ▁same ▁as ▁it ▁was ▁in ▁the ▁early ▁ 1 9 th ▁century . ▁A ▁large ▁town ▁by ▁the