Otto Wiener
Otto Wiener ( February 13 , 1911 – August 5 , 2000 ) was an Austrian baritone , notable for his performances in the operas of Richard Wagner . 
<triplet> Otto Wiener <subj> February 13, 1911 <obj> date of birth <subj> August 5, 2000 <obj> date of death <subj> Austria <obj> country of citizenship <triplet> Richard Wagner <subj> opera <obj> field of work