XXIII. Then King Don Sancho went to Burgos, because it was not the season for besieging a town, being winter. And he sent his letters through all the land, calling upon his vassals to assemble together upon the first day of March in Sahagun, upon pain of forfeiting his favour. Now though the King was yet but a young man, whose beard was but just coming, he was of so great courage that the people feared him, and dared not do otherwise than as he commanded. And they assembled together in Sahagun on the day appointed; and when the King heard in what readiness they were, it gladdened him, and he lifted up his hands to God and said, Blessed be thy name, O Lord, because thou hast given me all the kingdoms of my father. And when he had said this he ordered proclamation to be made through the streets of Burgos, that all should go forth to protect the host and the body of the King their Lord. And the day in which they left Burgos they took up their lodging at Fromesta; and the next day they came to Canion, but the King would not lodge there, and he went on to Sahagun, where the army awaited him, and took up his lodging without the town; and on the following morning he bade the host advance, and they made such speed that in three days they arrived before Zamora, and pitched their tents upon the banks of the Douro; and he ordered proclamation to be made throughout the host that no harm should be done until he had commanded it. And he mounted on horseback with his hidalgos and rode round the town, and beheld how strongly it was situated upon a rock, with strong walls, and many and strong towers, and the river Douro running at the foot thereof; and he said unto his knights, Ye see how strong it is, neither Moor nor Christian can prevail against it; if I could have it from my sister either for money or exchange, I should be Lord of Spain.