Note 7
Chapter XII · HOW MANY KINDS OF SOLDIERY THERE ARE, AND CONCERNING MERCENARIES

…Bartolomeo da Bergamo, Roberto da San Severino, the count of Pitigliano,[6] and the like, under whom they had to dread loss and not gain, as happened afterwards at Vaila,[7] where in one battle they lost that which in eight hundred years they had acquired with so much trouble. Because from such arms conquests come but slowly, long delayed and inconsiderable, but the losses sudden and portentous.