Which Carthaginian prisoner famously advised against accepting peace terms and ensured his own death?

The correct answer is Regulus. He was a Roman general who was captured during the First Punic War and became a prominent symbol of Roman valor and loyalty. When Regulus was sent back to Rome by the Carthaginians to negotiate a peace treaty, he famously advised against accepting any peace terms. His strong belief in the Roman cause and his unwillingness to compromise his principles led him to return to Carthage, knowing that he would face execution. Regulus's story is often cited as an example of unwavering commitment to one's country and ideals, as he chose honor over survival. His actions had a lasting impact on Roman morale and the perception of heroism during the conflict with Carthage.