The true scale of the Black Death's mortality remains shrouded in some mystery. While estimates suggest a staggering 33-40% decline in Europe's population, with some regions like Florence and Venice experiencing even greater losses (up to 75%), pinpointing the exact cause of death can be challenging. Distinguishing between plague victims and those succumbing to other illnesses further complicates the picture. Although church records offer glimpses into birth and death rates, their accuracy is uncertain.