▁fatal ▁adm issions , ▁even ▁comprom ised ▁others , ▁and ▁together ▁with ▁several ▁compan ions ▁was ▁condem ned ▁to ▁death ▁for ▁high ▁tre ason , ▁but ▁through ▁the ▁inter cess ion ▁of ▁his ▁wife ▁and ▁father , ▁who ▁went ▁to ▁Vienna ▁to ▁ple ad ▁his ▁cause ▁in ▁person , ▁the ▁em peror ▁Francis ▁comm uted ▁the ▁penalty ▁to ▁perpet ual ▁imprison ment ▁in ▁the ▁for tr ess ▁of ▁Spiel berg ▁( J anu ary ▁ 1 8 2 4 ). ▁Conf al on ieri ▁was ▁taken ▁to ▁Vienna ▁and ▁had ▁a ▁long ▁interview ▁with ▁Prince ▁Met tern ich , ▁who ▁tried ▁to ▁extract ▁further ▁conf essions ▁inc rimin ating ▁other ▁persons , ▁especially ▁Charles ▁Albert , ▁but ▁although ▁Conf al on ieri ▁seemed ▁at ▁one ▁time ▁incl ined ▁to ▁prepare ▁a ▁report ▁on ▁the ▁revolution ary ▁movement ▁for ▁the ▁em peror , ▁he ▁did ▁not ▁do ▁so , ▁and ▁once ▁he ▁was ▁in ▁prison ▁he ▁refused ▁to ▁say ▁or ▁write ▁another ▁word , ▁and ▁was ▁treated ▁with ▁exception al ▁sever ity ▁in ▁consequence . ▁ ▁His ▁wife ▁died ▁in ▁ 1 8 3 0 , ▁and ▁in ▁ 1 8 3 6 , ▁on ▁the ▁death ▁of ▁the ▁em peror ▁Francis , ▁he ▁was ▁p ardon ed ▁and ▁ex iled ▁to ▁America . ▁He ▁came ▁back ▁to ▁Europe ▁after ▁a ▁year ' s ▁absence , ▁and ▁in ▁ 1 8 4 0 ▁obtained ▁permission ▁to ▁return ▁to ▁Milan ▁to ▁see ▁his ▁dying ▁father . ▁He ▁himself , ▁broken ▁in ▁health ▁and ▁spirits ,