The play was translated into English and presented in US in 1964. There was a major controversy over the claims against the pope and the Vatican made by Hochhuth.
One contemporary discussion
http://theologytoday.ptsem.edu/apr1964/v21-1-criticscorner4.htmThe Deputy and Christian Conscience
By James H. Nichols*
HOCHHUTH'S The Deputy is a powerful and passionate arraignment of the honesty and relevance of the Christian church in the modern world. The specific issue is more restricted, an indictment of Pope Pius XII for not speaking out against Nazi atrocities. But the scope of the indictment extends itself in the minds of the hearers to broader dimensions, perhaps, than the author himself had in mind. Here is an unrelenting accusation of the moral bankruptcy of Christianity in one of the great crises of history, and further, the probing challenge to religious faith itself-how can one believe in God in the stench of Auschwitz? The dramatic form is only a vehicle of convenience for a denunciatory sermon. There are conspicuous lapses and failures of artistic realization, but the preacher's passion sustains the needed intensity, and those most grateful for the play feel least like clapping.
Taken as the representative of organized Christianity generally, Protestant as well as Catholic, and as the spokesman of the Christian conscience, the "deputy" of Christ, the Pope, is legitimately pilloried as guilty of betrayal. He stands for all of us well-intentioned, decent, respectable Christians who could not believe what was whispered, who did not want to know what was going on, who had so many institutional interests and responsibilities, political and ecclesiastical, which would certainly suffer if we admitted the truth. Pius XII, the Catholic Church, the Protestant churches, all of us "made the great refusal" even more despicably than the Pope whom Dante placed in hell on that charge. The Pope and the churches which
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* Rolf Hochhuth's drama, The Deputy, which has caused a stir during the past year wherever it has played on the Continent, is now the subject of controversy in this country. Playing to full houses on Broadway, and available in at least two different English texts, the whole tangled ethical question of Christian conscience in the face of evil is being explored afresh in dramatic form. James H. Nichols' a Protestant Observer at Vatican Council II, presents in this brief but perceptive review his initial reactions to the play.
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claim to speak for Christ proved themselves unsafe guides in faith and morals. Can we deny that the Lieutenant Gerstein's and the Father Fontana's were the exceptions, alike in Roman Catholicism and in Protestantism?
more....
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One collection of articles dealing with the controversy is The Storm over The Deputy