Born in Venice to a relatively prosperous artisanal family, daughter to Alvise di Martin Ferrazzi or Ferrazzo and Maddalena Polis, Ferrazzi aspired to become a nun from an early age, and showed a strong aversion to the idea of marriage.
Ferrazzi's upbringing in a prosperous artisanal family in Venice instilled in her a desire for spiritual pursuits from a young age, and she demonstrated a clear preference for a life of celibacy over one of matrimony.