Sentence:  Charters, wills, and monastic rules offer evidence for this transformation, but it is <WSD>hagiography</WSD> and its double-scoped discourse that illuminates it best, and we will start with a "vita" that pursued the question of peroperty and prestige more comprehensively than the rest, the "Vita Sadalbergae." 
Meaning of the word marked with <WSD> tags:  The study of saints and the documentation of their lives.