It may be urged that some of the material, such as the "seiðkona," said in the foregoing to be derived from foreign sources, is recognized saga-material. The point, however, is that it is not the material itself, but the suggestion for the use of it, that in such an instance is said to be derived from a foreign source. _The Hroar-Helgi Story in the _SKJỌLDUNGASAGA_ and the _BJARKARÍMUR. Thus far nothing has been said about the "short and chronicle-like form in the Icelandic _Skjọldungasaga_, where the fratricide is called Ingjald, not Frothi."[159] The story is, in substance, as follows. Fridleif, King of Denmark, abducted Hilda, daughter of Ali, King of the Uplands in Norway, and by her had a son who was named Ali; by another woman he had a son who was named Frothi. Frothi inherited his father's kingdom; but Ali, his half-brother, who was a great warrior, conquered Sweden. Frothi's men feared Ali and persuaded Frothi to try to have him put to death. Frothi yielded to their entreaties, and Starkad, the famous warrior, was dispatched to perform the deed. When an opportunity presented itself, he stabbed Ali to death. "My brother has caused this," said Ali, and died laughing. Later, Frothi defeated Jorund, King of Sweden, and made him a tributary prince. He also defeated Swelling, a Swedish duke, and treated him in the same manner. Frothi abducted Jorund's daughter, by whom he had a son who was called Halfdan. But taking another woman to wife, a legitimate heir was born to him, and this son was called Ingjald. Starkad, however, was so filled with remorse for having killed Ali that he did not wish to remain with Frothi. He went, therefore, soon after to Russia and later to Sweden, but, disgusted with the idolatry of the Swedes, returned to Frothi. Ingjald, son of Frothi, had in the meantime married the daughter of Swerting, thus, as it seemed to all, effecting a reconciliation with him. Jorund and Swerting, however, formed a conspiracy against Frothi, and he was slain one night while sacrificing to the gods. In the meantime, Starkad was absent in Sweden, where, under the guise of friendship, he was detained by gifts, in order that the plot against Frothi might be the more easily executed. Swerting placated Ingjald, Frothi's son and Swerting's son-in-law; but Halfdan, Ingjald's half-brother, conquered Skåne and avenged his father's murder by putting to death Swerting's twelve sons, who had slain Frothi. At the instigation of Starkad, Ingjald put his wife, Swerting's daughter, aside. He also granted Halfdan a third of the kingdom. Swerting's daughter later bore Ingjald a son (Agnar); and by his wife, Sigrith, Halfdan had a daughter, Signy, and two sons, Hroar and Helgi.