▁being ▁used ▁as ▁a ▁prison ▁by ▁the ▁b ish ops ▁of ▁Lincoln . ▁ ▁The ▁castle ▁was ▁bought ▁by ▁Edward ▁Se ym our , ▁the ▁Duke ▁of ▁Som erset , ▁in ▁ 1 5 4 7 ; ▁it ▁passed ▁shortly ▁afterwards ▁to ▁John ▁D ud ley , ▁the ▁Duke ▁of ▁North umber land , ▁who ▁sold ▁it ▁to ▁the ▁Crown ▁in ▁ 1 5 5 1 . ▁Short ly ▁after ▁this ▁the ▁prison ▁in ▁the ▁castle ▁dimin ished ▁in ▁size , ▁van ishing ▁entirely ▁by ▁the ▁ 1 5 6 0 s . ▁The ▁prison ▁was ▁re created ▁in ▁the ▁ 1 5 8 0 s , ▁however , ▁for ▁holding ▁rec us ants , ▁that ▁is ▁to ▁say ▁Roman ▁C athol ics ▁who ▁refused ▁to ▁attend ▁Church ▁of ▁England ▁services ▁as ▁was ▁required ▁by ▁law . ▁In ▁ 1 5 9 5 ▁Ban bury ▁Castle ▁was ▁le ased ▁to ▁Richard ▁F iennes , ▁the ▁lord ▁of ▁Say e ▁and ▁Sele . ▁ ▁In ▁ 1 6 4 2 ▁the ▁English ▁Civil ▁War ▁broke ▁out ▁between ▁the ▁Royal ist ▁supp or ters ▁of ▁Charles ▁I ▁and ▁the ▁supp or ters ▁of ▁Parliament . ▁Ban bury ▁Castle ▁was ▁initially ▁held ▁by ▁William ▁F iennes , ▁the ▁son ▁of ▁Richard , ▁for ▁Parliament ▁and ▁the ▁castle ▁was ▁hast ily ▁ref ort ified . ▁After ▁the ▁battle ▁of ▁Edge hill , ▁Charles ▁march ed ▁south ▁and ▁forced ▁the ▁surrender ▁of ▁the ▁castle ▁and ▁its ▁stock ▁of ▁ 1 , 5 0 0 ▁fire ar ms .