Ivar the Boneless was the brother of which 9th century Viking chieftain?
Ivar the Boneless Ivar the Boneless (Old Norse: "Ívarr hinn Beinlausi" ; ) was a Viking leader and a commander who invaded what is now England. According to the "Tale of Ragnar Lodbrok", he was the son of Ragnar Lodbrok and Aslaug. His brothers included Björn Ironside, Halfdan Ragnarsson, Hvitserk, Sigurd Snake-in-the-Eye and Ubba.
Cinuit of Alt Clut Cinuit (Welsh: "Cynwyd" ) may have been an early ruler of the Brittonic kingdom of Alt Clut, later known as Strathclyde, in Britain's "Hen Ogledd" or "Old North". The Harleian genealogies indicate that he was the son of Ceretic Guletic, who may be identified with the warlord "Ceredig" rebuked by Saint Patrick in one of his letters. According to the same pedigrees, he was the father of Dumnagual Hen, an important but obscure ancestor figure in Welsh tradition. The later genealogy "Bonedd Gwŷr y Gogledd" replaces Cinuit as Dumnagual's father with a certain Idnyuet, said to be the son of Maxen Wledic (the Roman usurper Magnus Maximus). However, the "Bonedd" does include a "Cynwyd Cynwydion" in the ancestry of Clydno Eiddyn, and a Triad attached to the text mentions the "three hundred swords of the (tribe of) Cynwydion" as one of three formidable north British war bands, along with those of Coel Hen and Cynfarch.