Information about the 1958 Conclave and
CARDINAL GIUSEPPE SIRI
Was he elected Pope Gregory XVII
on October 26, 1958?
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There were certain irregularities about the election during that 1958 conclave, as Cardinal Tisserant has himself acknowledged. Some say Agagianian was elected, others Siri, others some other cardinal, and that the camerlengo [=chamberlain] then annulled the election. In any case, I’m quite sure John XXIII chose his name, the name of an antipope [of the 15th century], quite consciously, to show he had been irregularly elected.