By whom? Of course not by the pope alone. The pope didn't fry the templars alone, nor was he the mastermind behind it.
However, a union of kings allied with the pope could have fried a rival king. Say, the french and spanish kings and the holy roman emperor allied with the church conspiring against the aragonese king.
Remember that the inquisition wasn't just a papal weapon, it was used more by the kings and princes of the world.
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