Josef Mengele | Josef Albers | Franz Josef Land | Josef Schwarz | Josef Terboven | Josef Locke | Josef Koudelka | Josef Čapek | Franz Josef Strauss | Josef Hofmann | Josef Wiesehöfer | Josef Szeiler | Josef Frings | Josef Fares | Franz Josef Strauß | Josef von Sternberg | Josef Tal | Josef Meinrad | Josef Dietrich | Josef Zisyadis | Josef W. Wegner | Josef Vojta | Josef Svoboda | Josef Schulz | Josef Ressel | Josef Priller | Josef Pieprzyk | Josef Pasternack | Josef Nesvadba | Josef Myrow |
In 1967 Siepi was Don Giovanni in a controversially received production staged by Otto Schenk and designed by Luciano Damiani that showed Mozart's masterpiece in the light of the commedia dell'arte, emphasizing the comic and ironic elements of this opera (conductor Josef Krips strongly opposed this production's concept).
She remained a frequent performer at the Hungarian State Opera House and appeared often as a guest at the Bavarian State Opera, Berlin State Opera, and Semperoper under such conductors as Karl Böhm, Victor de Sabata, Wilhelm Furtwängler, Hans Knappertsbusch, Clemens Krauss, and Josef Krips.
He had an international career, visited 40 countries, and played under conductors such as Sir John Barbirolli, Sir Adrian Boult, Sergiu Celibidache, Sergiu Comissiona, Antal Doráti, Josef Krips, Lorin Maazel, Harold Byrns, Yuval Zaliouk and Alfred Wallenstein.