The aria for soprano was first used in Handel's 1707 oratorio Il trionfo del Tempo e del Disinganno; albeit with a different text and name, "Lascia la spina".
Cecilia Bartoli's "Opera Proibita" CD: Canada: http://amzn.to/13gcR1c US: http://amzn.to/118r8xZ Cecilia Bartoli performs "Un leggiadro giovenetto". The bonus ...