According to A, where the account is a little more detailed than in B, Siward, who was given the cognomen Diere (large), was a brave and powerful man, who, disdaining the succession to his father's earldom in Denmark, set sail with one vessel and fifty chosen companions, and arrived at the Orkney Islands. On one of the islands was a dragon that had done much damage by killing men and cattle. To show his strength and bravery, Siward entered into a combat with the dragon and drove it from the island. Thence he set sail for Northumberland, and there, he heard, there was another dragon. During the search for this dragon, he met an old man sitting on a hill. He inquired of the man as to the whereabouts of the dragon. But the man, calling him by name, told him that he sought the dragon in vain, and directed him to continue his journey and proceed till he came to a river called Thames, on whose bank was situated a city by the name of London. "And there," he said, "you will find the king of that region, who will enlist you in his service and in a short time bestow land upon you." As a token of the trustworthiness of his prediction, the old man drew from the folds of his garment a banner, called Ravenlandeye, and presented it to Siward. Siward accepted the banner and proceeded to London, where he was summoned by King Edward to meet him at Westminster. Siward obeyed the summons and was enlisted in the service of the king, who promised him the first position of honor to become vacant in the kingdom. On this visit to the king, he slew Tosti in order to avenge an imagined insult and demanded and received Tosti's earldom of Huntingdon, which had thus become vacant. Some time after he also received the earldoms of Northumberland, Cumberland, and Westmoreland. Later the Norwegians made war on the king; but Siward defeated them and avenged many fold the insults and injuries sustained by the king, thus fulfilling the prophecy "that Divine Providence would permit to be born from the union of a rational with an irrational creature, i.e., from the union of a woman with a bear, a man who would wreak vengeance on the enemies of the illustrious and glorious King of England." In the course of time, Dunewal, King of the Scots, was ejected from his kingdom. He sought the aid of Siward, who gathered an army and proceeded as far as Dundee, when news was brought him that his subjects in Northumberland had risen in insurrection and slain his son Osbertum (Osbernum) Bulax. Compelled to return he was roused to such anger that he sank his sword into a rock leaving a mark that could be seen, the author says, in his day. Siward restored to the king the territory seized by the rebels, and returned home and inflicted severe punishment on his enemies. B has some variations from the account in A, but none of these variations are of present significance.