Hagiography

A hagiography  is a biography of a saint or an ecclesiastical leader, as well as, by extension, an adulatory and idealized biography of a founder, saint, monk, nun or icon in any of the world’s religions. Early Christian hagiographies might consist of a biography or vita, a description of the saint’s deeds or miracles (from Latin vita, life, which begins the title of most medieval biographies), an account of the saint’s martyrdom (called a passio), or be a combination of these. (Wikipedia)