▁absent . ▁Not ▁long ▁after ▁Aqu ab lan ca ' s ▁return , ▁which ▁was ▁probably ▁exped ited ▁by ▁the ▁stern ▁re bu ke ▁which ▁the ▁King ▁admin ister ed , ▁he ▁and ▁all ▁his ▁relatives ▁from ▁Sav oy ▁were ▁seized ▁within ▁the ▁c athedral ▁by ▁a ▁party ▁of ▁bar ons , ▁who ▁dep riv ed ▁him ▁of ▁the ▁money ▁which ▁he ▁had ▁ext orted ▁from ▁the ▁Irish . ▁▁ 1 4 th ▁to ▁ 1 6 th ▁century : ▁completion ▁of ▁the ▁fabric ▁ ▁In ▁the ▁first ▁half ▁of ▁the ▁ 1 4 th ▁century ▁the ▁re building ▁of ▁the ▁central ▁tower , ▁which ▁is ▁emb ell ished ▁with ▁ball - flow er ▁orn aments , ▁was ▁carried ▁out . ▁At ▁about ▁the ▁same ▁time ▁the ▁chapter ▁house ▁and ▁its ▁vest ib ule ▁were ▁built , ▁then ▁Thomas ▁Tre ven ant , ▁who ▁was ▁bishop ▁from ▁ 1 3 8 9 ▁to ▁ 1 4 0 4 , ▁re built ▁the ▁south ▁end ▁and ▁gro ining ▁of ▁the ▁great ▁tr anse pt . ▁Ar ound ▁the ▁middle ▁of ▁the ▁ 1 5 th ▁century ▁a ▁tower ▁was ▁added ▁to ▁the ▁western ▁end ▁of ▁the ▁nave , ▁and ▁in ▁the ▁second ▁half ▁of ▁this ▁century ▁b ish ops ▁John ▁Stan berry ▁and ▁Edmund ▁Aud ley ▁built ▁three ▁chant ries , ▁the ▁former ▁on ▁the ▁north ▁side ▁of ▁the ▁pres by tery , ▁the ▁latter ▁on ▁the ▁south ▁side ▁of ▁the ▁Lady ▁Chap el . ▁Later ▁b ish ops ▁Richard ▁May ew ▁and ▁Bo