9 3 0 s , ▁began ▁to ▁perform ▁profession ally , ▁all ▁around ▁the ▁country . ▁During ▁the ▁Second ▁World ▁War , ▁Knight ▁joined ▁the ▁hospital ▁section ▁of ▁E NS A ▁( Enter tain ments ▁National ▁Service ▁Association ). ▁She ▁chose ▁the ▁stage ▁name ▁R ona ▁Br andon , ▁and ▁became ▁well ▁known ▁as ▁a ▁BBC ▁and ▁recording ▁sop rano . ▁ ▁After ▁World ▁War ▁II , ▁Knight ▁attended ▁the ▁Paris ▁school ▁of ▁m ime , ▁dance ▁and ▁drama , ▁and ▁in ▁ 1 9 5 0 , ▁opened ▁the ▁Cor ona ▁Academy ▁of ▁Stage ▁Training , ▁in ▁W elles ley ▁Road , ▁Ch is wick . ▁In ▁ 1 9 5 5 , ▁the ▁Cor ona ▁Academy ▁moved ▁to ▁larger ▁facilities ▁at ▁ 1 6 ▁Rav ens court ▁Avenue , ▁Hamm ers m ith , ▁whilst ▁retain ing ▁its ▁former ▁prem ises ▁in ▁Ch is wick . ▁The ▁school ▁supplied ▁the ▁young ▁cast ▁for ▁Lion el ▁Bart ' s ▁Oliver . ▁The ▁Cor ona ▁Academy ▁of ▁Stage ▁Training ▁closed ▁in ▁ 1 9 8 9 , ▁following ▁Miss ▁Knight ' s ▁ret irement . ▁ ▁Rav ens court ▁Theatre ▁School ▁Rav ens court ▁Theatre ▁School ▁was ▁a ▁stage ▁school ▁in ▁London , ▁for ▁children ▁aged ▁ 7 ▁to ▁ 1 9 ▁years ▁old . ▁The ▁school ▁was ▁founded ▁in ▁ 1 9 8 9 ▁by ▁Robin ▁Phill ips , ▁following ▁the ▁closure ▁of ▁the ▁Cor ona ▁Stage ▁Academy , ▁and ▁the ▁ret irement ▁of ▁its ▁principal , ▁R ona ▁Knight . ▁