▁the ▁or chestra ▁on ▁the ▁night s ▁she ▁appeared . ▁Her ▁re app earance ▁took ▁place ▁at ▁Cov ent ▁Garden ▁on ▁ 3 ▁Oct . ▁ 1 8 0 1 , ▁in ▁Thomas ▁Ar ne ' s ▁Ar tax er xes , ▁in ▁which ▁she ▁sang ▁the ▁part ▁of ▁Mand ane , ▁Inc led on ▁singing ▁that ▁of ▁Ar b aces . ▁During ▁ 1 8 0 1 ▁she ▁made ▁from ▁£ 1 0 , 0 0 0 ▁to ▁£ 1 5 , 0 0 0 , ▁and ▁at ▁one ▁time ▁her ▁fortune ▁is ▁said ▁to ▁have ▁amount ed ▁to ▁£ 6 5 , 0 0 0 . ▁In ▁ 1 8 0 2 ▁Mrs . ▁Bill ington ▁appeared ▁in ▁Italian ▁opera ▁at ▁the ▁King ' s ▁Theatre , ▁on ▁the ▁occasion ▁of ▁the ▁fare well ▁of ▁B anti , ▁when ▁both ▁these ▁great ▁artists ▁sang ▁in ▁Sebast iano ▁Nas ol ini ' s ▁' M ero pe .' ▁A ▁similar ▁performance ▁took ▁place ▁on ▁ 3 ▁June ▁of ▁the ▁same ▁year , ▁when ▁she ▁was ▁induced ▁to ▁sing ▁a ▁du et ▁with ▁Mar a , ▁at ▁the ▁fare well ▁concert ▁of ▁her ▁great ▁rival . ▁From ▁this ▁time ▁until ▁her ▁ret irement ▁in ▁ 1 8 1 1 ▁she ▁continued ▁to ▁sing ▁in ▁Italian ▁opera . ▁Winter ▁wrote ▁his ▁' Cal y ps o ' ▁( 1 8 0 3 ) ▁express ly ▁for ▁her , ▁and ▁in ▁ 1 8 0 6 ▁she ▁distinguished ▁herself ▁by ▁producing , ▁for ▁her ▁benefit