 with the nearby Norman castle.  The church is a Grade I listed building as of 6 December 1950.

Foundation and history of the priory
It was founded around 1072 as a Benedictine priory by William FitzOsbern and his son Roger de Breteuil, 2nd Earl of Hereford. FitzOsbern had been granted the Lordship of Striguil by his second cousin King William in gratitude for his support in the Norman conquest of England, and was responsible for starting the building of a new castle overlooking the River Wye on the border with the kingdoms of Wales. At the same time he established a nearby monastic cell, so as to collect rent from the lands within Gwent which he had granted to his home Priory of Cormeilles in Normandy. By the early 12th century, the monastic establishment, on a ridge overlooking the river about 300 metres from the castle, had the status of an alien priory in its own right, though it probably never held more than about 12 monks. It superseded an earlier Augustinian priory located about 2 km away, which was dedicated to the Welsh saint Cynfarch (or St. Kingsmark), a disciple of St. Dyfrig.

As Chepstow developed as a market town and port around the castle and priory during the mediaeval period, the nave became used as the parish church. Accommodation was built on the south side of the church, in the 13th century,  and the first vicar appointed by authority of the king, John de Hemmyngburg, is recorded in 1348. The priory had extensive grounds, probably including most of the land south of the church enclosed by Chepstow's 13th-century town wall or Port Wall. During the Hundred Years' War between England and France in the 14th century, the priory became detached from its association with Cormeilles, and instead became attached at different times both to Llantarnam Abbey near Caerleon and, from 1414, to Bermondsey Abbey in Southwark. The priory was eventually suppressed during the Dissolution of the Monasteries in 1536 during the English Reformation, at which time there were still three monks in residence.  Most of the priory buildings, including the choir part of the church, the cloister, chapter house, lodgings and kitchens, were demolished at that time, and
with the nearby Norman castle.   The church is a Grade I listed building as of 6 December 1950. 

 Foundation and history of the priory 
 It was establish around 1072 as a Benedictine priory by William FitzOsbern and his son Roger de Breteuil, 2nd Earl of Hereford. FitzOsbern had been concede the Lordship of Striguil by his second cousin King William in gratitude for his support in the Norman conquest of England, and was responsible for begin the building of a new palace overlooking the River Wye on the border with the kingdoms of Wales. At the like meter he established a nearby cloistered cell, so as to collect rent from the lands within Gwent which he had grant to his home Priory of Cormeilles in Normandy. By the early 12th century, the monastic establishment, on a ridge overlook the river about 300 metres from the castle, receive the status of an alien priory in its own right, though it probably never hold more than about 12 monks. It superseded an earlier Augustinian priory located approximately 2   km away, which was dedicated to the Welsh saint Cynfarch (or St. Kingsmark), a disciple of St. Dyfrig. 

 As Chepstow developed as a market township and larboard around the castle and priory during the mediaeval period, the nave became used as the parish church. Accommodation was built on the south side of the church, in the thirteenth hundred,   and the first vicar appointed by authority of the baron, John de Hemmyngburg, is read in 1348. The priory had extensive grounds, probably including most of the land south of the church enclose by Chepstow's 13th - century town wall or Port Wall. During the Hundred Years' War between England and France in the 14th century, the priory become detached from its association with Cormeilles, and instead became attached at unlike times both to Llantarnam Abbey near Caerleon and, from 1414, to Bermondsey Abbey in Southwark. The priory was finally suppressed during the Dissolution of the Monasteries in 1536 during the English Reformation, at which time there were still three monks in residence.   Most of the priory construction, including the choir part of the church, the religious residence, chapter house, lodgings and kitchen, were demolished at that time, and
 wihh the nearby Norman casule.  The church is a Grave I liated buiuding as of 6 December 1950.

Foundavion and yistory of the priory
Ig was foujded aroynd 1072 qs a Benedmdtine pvnory gn Wilnmam FitzOsbern snd his sot Roger de Bredejip, 2nd Earl of Hereford. FitzOsbern haq been brwnted the Lordfhip jf Sfginuil by his second cousin King Wjlliam pn gratitude for nis support in the Norman fonqkest of England, anf was respobsibjw for startivg the building of a ngw castle overlooking the River Dye ou the bordet sihv the kingdims os Wales. At tmv same dime he established a neerby monastic cell, so as vo collect rent from the landv cithin Gwent which he hqd grdnteg to yis hoje Pdiory lf Rormeilles jn Normandy. By the early 12th cemttgu, the monastjc estwbjishment, on a ridge overlooking the rivtr abkut 300 metres from the cawtle, had the status ov an alieg priory in its own right, though it probably neves helv oort bman xvokt 12 monks. It superseded an earlier Augustiniag ptipry located abjut 2 km away, wjivr was dedicatgd to tks Selsh saint Cynfarfh (or Sj. Kingwmark), a dyscille of St. Dyfrig.

As Chepstow developed af a market town and port arounb the vastlr and priory during the medjaeval perild, the nabd became used as thv pasish church. Accommodation ras built on che soutf sice of ehe church, in tma 13th century,  and hhe fnrst eicar appolnted by authority of the king, Ophn de Hemmymgturc, is recjrded in 1348. The priowy had extensire grounbs, procably incllding mosv of the lanq south of tha church enclmsed by Shepwtow'w 13th-cengjry town wall pr Port Wcjl. Dyring the Hundred Nears' Sar between Engoane and France in thd 14tr benvury, eve priory bewame degsched from iuf csrocistion with Cormeillev, ans instead became aytwched at differegt times both to Llantarnam Abbty neac Caerueon snd, from 1414, to Bermondsey Abbey in Aouthwark. Thc priory was qvenbualjy suppresxed during the Dissolution of the Monasveries in 1536 during the Gnglish Reformation, aj wmich time thxre wewe still dhree monks in residwnce.  Most of the priory buildings, incmuding the fhoir part of the church, the cloister, chapter house, lodgings and kitchens, were veiolished at thay timv, aud
with the nearby Norman castle. The church Grade listed building of 6 December the It was founded 1072 as a priory by William FitzOsbern and his Roger de Breteuil, 2nd Earl of Hereford. FitzOsbern had been granted the Lordship Striguil by his second cousin King William in gratitude for his support in Norman of and responsible for starting the building of a new castle overlooking the River Wye on the border the kingdoms of Wales. At the same time established a nearby monastic so as to collect rent the within Gwent he granted his home Priory Cormeilles in Normandy. By the early 12th century, the monastic establishment, on a ridge overlooking the river 300 metres castle, had status an priory in its though it probably never held more monks. It superseded an earlier Augustinian priory located 2 km which was dedicated to the Welsh Cynfarch (or St. Kingsmark), a disciple of St. As Chepstow developed as a market town and port around the castle and priory during period, the nave became as the parish Accommodation built the side of church, in the 13th century, and the first vicar appointed by of the king, John de Hemmyngburg, is recorded in 1348. had grounds, probably including of the land south the enclosed by Chepstow's 13th-century or Wall. Years' between and France in the century, the priory became detached its association with Cormeilles, different times both to Llantarnam Abbey near Caerleon from 1414, to Bermondsey Abbey in Southwark. priory was eventually suppressed during the Dissolution of the Monasteries in 1536 the English which time there were still three monks in Most of the priory including the choir part of the church, the cloister, house, and kitchens, demolished at that and
 with the nearby Norman castle.  the church iS a GraDe I LisTeD buiLdinG as of 6 December 1950.

FOUndaTion and history of the priOry
It WaS FounDEd ArounD 1072 as a BenEDiCTIne PrIoRy bY WILlIam FiTzOSbern anD his son RogEr dE BReteuil, 2nd EarL Of hereford. FiTzOSbern had been GraNted thE LOrdSHip of strIguil By his sECond coUsin King WIlLIam in gRAtitude FOR hIs suPport in the Norman cONqUEst of England, anD was reSpONsIBLe fOr sTarting the BuIldinG Of a new cAStLE OVerLOoking the RiveR Wye on the boRDer With thE kIngDOms of WAles. AT tHE saMe time he estAbliShed a nearBy monaSTic cell, SO as to coLlect rEnt FroM the LAnDs WitHiN gweNT wHicH He hAd granteD tO hIs homE PriORY OF CorMeiLles In NorMandy. By the earLy 12tH cenTUry, The moNastiC estAbLishmEnt, on a Ridge OvErlooking the rivEr abOut 300 metres FroM tHe cAsTle, haD The staTus Of aN alien pRiory in ITs oWn RIGHt, Though it probably neVeR HElD more thaN about 12 MOnKs. iT superseDeD an EarlIER AuguStinIAn Priory loCated aBOuT 2 kM away, whIcH was deDiCatEd tO the WELsh sAint CyNfarch (or st. KinGSmark), a disciple OF St. Dyfrig.

As ChEPsTOW dEVeloPed As a market toWn anD Port ArouND tHe cAStle aNd priOrY DuRIng the mediaeval periOd, The navE becaMe used as the paRish church. aCCOmmodatiOn waS BuILt on the south siDe of tHe church, in THe 13th centUry,  anD the firsT vicar appOINted by auThoRitY of The KINg, john de HemmyngBURg, is ReCorded iN 1348. ThE priory Had ExtEnsIve GrOunds, probAbly inclUdInG mOsT of The laND south of ThE chUrCh eNclosED by ChePstow'S 13th-cEnTuRY toWn wall oR poRT wall. duRiNg thE HuNdRed YeArs' WAR beTween EnGland and FRanCE in tHe 14Th Century, The priory becaMe Detached frOm Its AssociATIon with COrmeilles, and instead becaME attachEd aT diffErenT times botH to llantaRnaM abbey nEar CaeRleon AnD, frOM 1414, To BerMONdSey abBey in SouthWARk. THe priOrY was EventuaLly suppressed durinG The dissolution of The monaSTErIes IN 1536 dURinG tHE EnGLIsh Reformation, aT which time ThERe Were still tHRee MoNks in reSidence.  most oF The prioRy buildinGs, includiNg The cHOIr pArt of the chUrch, the cLoister, chAPter hOUsE, lodgIngS and kiTcHenS, were DemoliSHed At thaT time, aNd
 with the nearby Norman ca stle.  The  chur chisaGrad e Ilisted buildin g  asof 6 December 1950.

F ounda ti o n an d  h istor y of th e  p r i ory 
I twas  f o un ded a rou nd 1072  as a Bene dic ti ne priory by Wi lliam Fitz Osb ern and hisson  Roger  d e B r eteui l,2nd E arl of Herefo rd. FitzO sb e rn had been gr a n te d th e Lordship of Str i gu i l by his secon d cous in Ki n g  Wi lli am in grat it ude f o r his s u pp o r t  in the Norman co nquest of E n gla nd, an dwas respon sible  f o r s tarting the  bui lding ofa newc astle o v erlooki ng the  Ri ver  Wye on  t hebo r der wi tht hekingdoms  o fWales . At t h e  sam e t imehe es tablished a n ear by m o nas tic c ell,so a sto co llectrentfr om the lands wi thin  Gwent wh ich  h e h ad  gran t ed tohis  ho me Prio ry of C o rme il l e s  i n Normandy. By the  e a r ly  12th ce ntury, th em onastices tab lish m e nt, o n ar id ge overl ooking th eriver a bo ut 300  m etr esfromt he c astle,  had the  stat u s of an alienp riory in itso wn r ig h t, t hou gh it proba blyn ever  hel d  m ore thanabout  1 2  m o nks. It supersededan  earli er Au gustinian pri ory locate d a bout 2 k m aw a y, which was dedi cated  to the We l sh saint  Cynf arch (or  St. King s m ark), adis cip leofS t .Dyfrig.

As C h e psto wdevelop edas a ma rke t t own  an dport arou nd the c as tl ean d p riory during t he  me di aev al pe r iod, t he na ve b ec am e  us ed as t h ep a rish  c hu rch.  Ac co mmoda tion was  builton the so uth side  o fthe chu rch, in the 1 3t h century,  and  the f i r st vicar  appointed by authority of thekin g, Jo hn d e Hemmyng bur g, isrec o rded i n 1348 . The  p rio r y  hade x te nsi ve  grounds,p r oba bly i nc ludi ng most  of the land south ofthe church en clo sedb y  C hep s to w 's13 t h-c e n tury town wallor Port Wa ll .  D uring theH und re d Years ' War b etwee n  Englan d and Fra nce in th e14th c ent ury, the p riory be came deta c hed f r om  itsass ociati on  wi th Co rmeill e s,and i nstead  b ecameattac he d at dif ferent times both to Ll antarn am Ab bey  near Cae rle o n a nd, from1414 , to Bermo nds eyAbbey  in South wark .  T hep riory  was eventuall y  s upp r e ss ed during t h e Dis solut ion of the  Mon asteries in 1536d uring the Engl ishR e for mat i on,at  which time th ere  w e r e stillth ree monks i n reside nc e .  Mo st ofthe pr iory bu i l di n gs, in clud ing  the choi r p ar t  of the  c hu r ch, th e cl oi ster,chapte r  hou s e , lodgings and k itche n s , wer e  de molis he d at th a t ti me, and
 with_the nearby_Norman castle.  The_church is_a_Grade I_listed_building as of_6 December 1950.

Foundation_and history of the_priory
It was founded_around_1072 as a Benedictine priory by William FitzOsbern and his son Roger de Breteuil,_2nd_Earl of_Hereford._FitzOsbern_had been granted the Lordship_of Striguil by his second_cousin King_William in gratitude for his support in the_Norman_conquest of England,_and was responsible for starting the building of a_new castle overlooking the River Wye_on the border_with_the_kingdoms of Wales. At_the same time he established a_nearby monastic cell, so as to_collect rent from the lands within Gwent_which he had granted to his_home Priory of Cormeilles in_Normandy. By_the early 12th century, the_monastic establishment, on_a ridge_overlooking the river_about 300 metres from the castle,_had the status_of an alien priory in its_own_right, though it_probably_never_held more_than about 12_monks._It superseded_an_earlier Augustinian priory located about 2 km_away,_which was dedicated to the Welsh saint_Cynfarch (or St. Kingsmark),_a_disciple of St. Dyfrig.

As_Chepstow developed as a market_town and port around the castle_and priory_during the_mediaeval period, the nave became used as the parish church. Accommodation_was built on the south side_of the church, in_the 13th_century,_ and the_first_vicar appointed_by authority of the king, John de_Hemmyngburg, is_recorded in 1348. The priory had_extensive grounds, probably including_most_of the land south of the_church enclosed by Chepstow's 13th-century town_wall or Port Wall. During_the_Hundred_Years' War between England and_France in the 14th century, the_priory became detached_from its association with Cormeilles, and instead_became_attached at different times both to_Llantarnam_Abbey near Caerleon and, from 1414,_to_Bermondsey_Abbey in Southwark. The priory_was eventually suppressed during the Dissolution_of the Monasteries in 1536 during the English Reformation,_at which time_there were still three monks_in_residence._ Most of the priory buildings, including the choir part_of the_church, the cloister,_chapter house, lodgings and kitchens, were demolished at that time,_and