<P> Henry 's successor , Richard I , paid relatively little attention to Kenilworth , but under King John significant building resumed at the castle . When John was excommunicated in 1208 , he embarked on a programme of rebuilding and enhancing several major royal castles . These included Corfe , Odiham , Dover , Scarborough as well as Kenilworth . John spent £ 1,115 on Kenilworth Castle between 1210 and 1216 , building the outer bailey wall in stone and improving the other defences , including creating Mortimer 's and Lunn 's Towers . He also significantly improved the castle 's water defences by damming the Finham and Inchford Brooks , creating the Great Mere . The result was to turn Kenilworth into one of the largest English castles of the time , with one of the largest artificial lake defences in England . John was forced to cede the castle to the baronial opposition as part of the guarantee of the Magna Carta , before it reverted to royal control early in the reign of his son , Henry III . </P>
<P> Henry 's successor , Richard I , paid relatively little attention to Kenilworth , but under King John significant building resumed at the castle . When John was excommunicated in 1208 , he embarked on a programme of rebuilding and enhancing several major royal castles . These included Corfe , Odiham , Dover , Scarborough as well as Kenilworth . John spent £ 1,115 on Kenilworth Castle between 1210 and 1216 , building the outer bailey wall in stone and improving the other defences , including creating Mortimer 's and Lunn 's Towers . He also significantly improved the castle 's water defences by damming the Finham and Inchford Brooks , creating the Great Mere . The result was to turn Kenilworth into one of the largest English castles of the time , with one of the largest artificial lake defences in England . John was forced to cede the castle to the baronial opposition as part of the guarantee of the Magna Carta , before it reverted to royal control early in the reign of his son , Henry III . </P>
what did king john do to kenilworth castle
what did king john do to kenilworth castle
rebuilding and enhancing
rebuilding and enhancing