Sith God has ordained that 'tis for me to take the lead to-day with my story, well pleased am I. And for that, loving ladies, much has been said touching the tricks that women play men, I am minded to tell you of one that a man played a woman, not because I would censure what the man did, or say that 'twas not merited by the woman, but rather to commend the man and censure the woman, and to shew that men may beguile those that think to beguile them, as well as be beguiled by those they think to beguile; for peradventure what I am about to relate should in strictness of speech not be termed beguilement, but rather retaliation; for, as it behoves woman to be most strictly virtuous, and to guard her chastity as her very life, nor on any account to allow herself to sully it, which notwithstanding, 'tis not possible by reason of our frailty that there should be as perfect an observance of this law as were meet, I affirm, that she that allows herself to infringe it for money merits the fire; whereas she that so offends under the prepotent stress of Love will receive pardon from any judge that knows how to temper justice with mercy: witness what but the other day we heard from Filostrato touching Madonna Filippa at Prato.(1) Know, then, that there was once at Milan a German mercenary, Gulfardo by name, a doughty man, and very loyal to those with whom he took service; a quality most uncommon in Germans. And as he was wont to be most faithful in repaying whatever moneys he borrowed, he would have had no difficulty in finding a merchant to advance him any amount of money at a low rate of interest. Now, tarrying thus at Milan, Gulfardo fixed his affection on a very fine woman, named Madonna Ambruogia, the wife of a wealthy merchant, one Guasparruolo Cagastraccio, with whom he was well acquainted and on friendly terms: which amour he managed with such discretion that neither the husband nor any one else wist aught of it. So one day he sent her a message, beseeching her of her courtesy to gratify his passion, and assuring her that he on his part was ready to obey her every behest.