Yes it was doctrine clearly it was as it was issued by a Papal bull and Decree<quoted text>
But, the "sane people" you cited at New Advent didn't say that Papal Bulls were doctrinal.
Now what? You're arguing with your own cited source that you earlier provided as "proff" of your position.
You're simply back to making an unfounded claim
Lets revisit the definition that all sane men and women recognize
Doctrine and or Dogma take your pick same word different languages
A principle or body of principles presented for acceptance or belief, as by a religious, political, scientific, or philosophic group; dogma.
A rule or principle of law, especially when established by precedent.
A statement of official government policy, especially in foreign affairs and military strategy.
Archaic Something taught; a teaching.
42 two Popes not One or two as you try to deceitful portray via Papal bull and Decree in what even New Advent admits was a Apostolic letter to all of Romes Dioceses that Inquisition was now instituted and official Church teaching to be administrated by a newly formed branch of Priests no less and official Pope approved manuals issued on how to torture were issued again reaffirmed by 41 popes after the fact.
In which Torture Summary executions confiscation of money and property were normative church teaching and practice for over 400+ years all in the name of Jesus to convert non believers and to make heretics to recant and with out any doubt millions upon millions executed and even more Millions who were tortured and had their wealth confiscated.
AGAIN IT WAS NOT ALLOWED BY 42 POPES IT WAS INSTITUTED BY 42 POPES AND THEY AFFIRMED AND CONDONED AND PROMOTED ITS USE.
Get your head out of the sand and repent while you have the opportunity.