Why is Prince Prospero's name ironic?

Answer 1

Cause hes not prosperous and dies unlike his name means to prosper
He dies of the Red Death, unlike his name which could signify prosperous.

Death is not prosperous.

Answer 2

Prince Prospero's name is ironic because he is not prosperous or successful in protecting himself and others from the Red Death in Edgar Allan Poe's story "The Masque of the Red Death." Despite his attempts to shield himself from the disease by hiding in his palace, he ultimately succumbs to the plague, showing that his wealth and power cannot save him.