Ingjald, however, desiring to rule over the whole kingdom, fell upon Halfdan unexpectedly with an army and slew him. He married Halfdan's widow, and by her had two sons, Hrörik and Frothi. Signy grew up under her mother's care, and later Ingjald gave her in marriage to Sævil, an earl in Seeland. But Hroar and Helgi hid from the king on an island near Skåne, and when they had arrived at the proper age they slew Ingjald and thus avenged their father's death. Hroar and Helgi now became Kings of Denmark. Later Hroar married the daughter of the King of England. Hrolf, nicknamed Kraki, who was eight years old when his father, Helgi, died, succeeded him on the throne. Hroar was soon after slain by his half-brothers, Hrörik and Frothi. Hrolf then became sole King of Denmark.[160] The story in the _Bjarkarímur_ is substantially the same as the story in the _Skjọldungasaga_. Both are plainly based on the same account, and, within certain limits, are identical with the corresponding story in the _Hrólfssaga_. Skåne, mentioned in the _Skjọldungasaga_ in the phrase "in insula quadam Scaniæ," is not mentioned in the _Hrólfssaga_. Its insertion in the _Skjọldungasaga_ is due to the fact that Halfdan, the father of Hroar and Helgi, is said to have conquered Skåne, and, as a result, would be regarded as having ruled there. But its presence in one account and omission in the other involve no contradiction. In all that belongs peculiarly to the story about Hroar and Helgi, the account in the _Skjọldungasaga_ is identical with the account in the _Hrólfssaga_. According to both sources, the name of the boys' mother was Sigrith; their father's name was Halfdan; he was slain by his brother, who fell upon him unexpectedly with an army; the fratricide married the murdered man's widow; Signy was the sister of Hroar and Helgi; she married Sævil, an earl in Denmark; Hroar and Helgi had to conceal themselves on an island to save their lives (according to the _Bjarkarímur_, they were brought up by the old man Vifil, a circumstance omitted in the _Skjọldungasaga_, but contained in the _Hrólfssaga_); when they had arrived at the proper age, they slew (according to the _Hrólfssaga_ and the _rímur_, "burnt-in") their father's murderer and thus avenged their father's death; Hroar and Helgi then became Kings of Denmark; Hroar married the daughter of the King of England; Helgi's son was Hrolf, who later became sole King of Denmark.