portion of the dynasty's wealth, probably the majority, came from the international slave trade, both as slavers themselves and from the taxation of it, for which they were infamous in their time. In this role they star as the principal antagonists in the early 12th-century Irish epic political tract The War of the Irish with the Foreigners, although the account is exaggerated. One of the greatest dynasties of the Viking Age, the Uí Ímair were at their height the most fearsome and wide-reaching power in the British Isles and perhaps beyond. Like the contemporary Rurikids in the East they ultimately integrated with the native population but their impact on the histories of Scotland and Ireland are still visible through the cities they founded and the Norse-Gael descendants they left behind. Ancestral homeland Some historians believe Ímar and Ivar the Boneless to be identical, others claim they are two different individuals. According to Irish annals, Ímar was the son of Gofraid (also Goffridh, Gothfraid or Guðrøðr), who was the king of Lochlann. The Norwegians at this point were often referred to as Lochlanns by the Irish. Lochlann was widely accepted among scholars as being identical to Norway; recently, however, this has been questioned by Donnchadh Ó Corráin and other. His and others' theory is that Lochlann was the "viking Scotland" (Norse/Norwegian settlements on the Scottish islands and northern mainland). Whether the Irish annals used the term Lochlann to refer to Norway or to the Norse settlements in Scotland is still a matter of debate; however, by the 11th century the term had come to mean Norway. According to Donnchadh Ó Corráin, there is no evidence that any branch of the royal Danish dynasty ruled in Ireland. He also claims that Ímar's brother, Amlaíb Conung (the name "Conung" is from the Old Norse konungr and simply means "king"), who often has been identified as part of the royal Norwegian dynasty (Ynglingene), was in fact not. He argues that both Ímar and his brothers were part of a Norse dynasty centered in and around the Scottish mainland. The Norwegian historian Kim Hjardar and archaeologist Vegard Vike claim that Ímar is the same person as the Dane Ivar the Boneless, and that he and the Norwegian chieftain Amlaíb Conung (Olaf the White) arrived in Ireland as leaders of a coalition of Vikings whose goal was to take control over the Viking settlements in Ireland.