The answer to this question, as posed, becomes circular. People who come to tragic ends somehow related to their religious faith are often regarded as "saints" or "martyrs." Other individuals who may be equally or more noble and pious, but have the bad fortune not to be killed for their faith, often are not recognized as saints.
An exception to the rule would be Mother Teresa of Calcutta, who was certainly saintly, noble and pious, but died a peaceful, natural death in her old age.
Noble and saintly
a noble act by the tragic hero
Of noble birth
Of noble birth
noble
A tragic figure, or tragic hero, is one of the archetypal characters. The basic definition is any protagonist in a tragedy, but it typically refers to a likeable and relatable character with a tragic flaw.
There is usually a hero of a noble stature who falls from grace and dies.
The type of play in which a noble hero suffers is called a tragedy. The suffering and downfall of the tragic hero is the basis of the play.
An especially noble or admirable protagonist is a tragic hero. His downfall stirs our emotions, evoking either pity or fear. Aristotle believed the best tragic hero downfall was not to due to either his sins or vice, but rather, by cruel fate or undeserved misfortune.
Radon.
I, III, and IV
he does not come from a rich or noble background.