Who was Voltaire attacking when he famously said Ecrasezl infame?

How did Voltaire die?

I've been searching a lot about this question. My parents (catholics both) told me the story when I was a kid about this infame person to the church. And tell me about his horrorific death, with an unknown decease and that he died claiming for a preist. On the internet there are several stories that basically tells the same story. Most of them sites in spanish. Then I search "lies about Voltaire's death" and I found a lot of documentation saying exactly the oposite story. The say about the screams and alutinations were cause for a bad drugs administration. After that Voltaire dies quietly like a gentleman and not drinking his own "brown waters" like catholics said. About the decease, I think the best theory is Voltaire died for a Cancer. It's very difficult to separate the decease of the "Fight" between his believers and his detractors. Gabriel Ambrogi