Wolfgang Anheisser
... that Wolfgang Anheisser was the leading baritone at the Cologne Opera while simultaneously a member of East Berlin's State Opera?
... that <b id="mwB0A"><a href="./Wolfgang_Anheisser" id="mwB0E" rel="mw:WikiLink" title="Wolfgang Anheisser">Wolfgang Anheisser</a></b> was the leading <a href="./Baritone" id="mwB0I" rel="mw:WikiLink" title="Baritone">baritone</a> at the <a href="./Cologne_Opera" id="mwB0M" rel="mw:WikiLink" title="Cologne Opera">Cologne Opera</a> while simultaneously a member of <a href="./Berlin_State_Opera" id="mwB0Q" rel="mw:WikiLink" title="Berlin State Opera">East Berlin's State Opera</a>?