ignorance and rudeness, thy magnanimous greatness may vouchsafe to look on my fault with a propitious countenance. CHAPTER III. In which we recount the descent of the Infant Don Henry. Two reasons move me to speak in this chapter of the descent of this noble prince. First of all, because the long course of ages driveth out of the memory the very knowledge of past things, which would be altogether dimmed and hidden from our eyes were they not to be represented before us in writing. And since I have determined to write for the representing of this present time to those that come after, I ought not to pass by in silence the glory of so noble a descent as our Prince's, since this book must indeed be a work placed by itself. For it may happen that those who read through this may not know anything of other writings. But this digression must needs be brief, that I may not be drawn away far from my projected task. And the second reason[G] is that we may not attribute the whole of such great virtues to one man only, but may rather give some part to his ancestors, for it is certain that nobility of lineage, being well observed by one that hath sprung from such a stock--for the sake, as often happeneth, of avoiding shame, or in some way of acquiring virtue--constraineth a man to shew courage, and strengtheneth his heart to endure greater toils. [Footnote G: _I.e._ for undertaking Prince Henry's genealogy.] Therefore you must know that the King Don John, who was the tenth King of Portugal, the same that was victor in the great battle of Aljubarrota and took the very noble city of Ceuta, in the land of Africa, was espoused to Donna Philippa, daughter of the Duke of Lancaster, and sister of the King Don Henry of England, by whom he had six lawful children, to wit, five princes, and one princess, who was afterwards Duchess of Burgundy.[N18] Some others, who died while still very young, I omit to mention. And of these children Prince Henry was the third, so that with the ancestry he had, both on his father's and his mother's side, the lineage of this royal prince embraced the most noble and lofty in Christendom. Now this same Prince Henry was also brother of the King Don Edward and uncle of the King Don Affonso, the kings who, after the death of the King Don John, reigned in Portugal. But this, as I said, I touch on briefly, because if I were to declare things more fully I should meet with many matters of which any single one duly followed up, as would be necessary, must needs cause so great a delay that I should be late in returning to my first commencement. CHAPTER IV. Which speaketh of the habits of the Infant Don Henry.