In the case of the latter, the title may emphasise Diarmait's achievement of stretching his influence from Ireland into the Isles. In Godred's case, the title may instead underscore Godred's expansion into Ireland from the Isles. The chronicle's record of Godred's death on Islay could indicate that the island formed a secondary power centre in the Isles. The fact that Historia Gruffud vab Kenan notes that Gruffudd travelled into the Isles to obtain military assistance from Gothrei could also be evidence that Godred's headquarters was located there. The record of Godred's death on Islay further suggests that he may well have been buried on the nearby holy island of Iona, the burial place of his like-named grandson, Gofraid mac Amlaíb, King of Dublin and the Isles. Legacy Síol nGofraidh and the Crovan dynasty Godred's greatest impact on history may have been his foundation of the Crovan dynasty, a vigorous family of sea-kings that ruled in the Isles for almost two centuries, until its extinction in the mid-thirteenth century, when the remaining kingdom was annexed by Alexander III, King of Scotland. There is uncertainty concerning the political situation in the Isles in the last decade of the eleventh century. It is apparent, however, that the dynasty descended from him soon turned upon itself. Although Godred's eldest son, Lagmann, appears to have succeeded him during the decade, the latter was soon forced to fend off rivals' factions supporting Godred's younger sons, Aralt in particular. Irish power appears to have encroached into the Isles at about this time as well, and it is evident that the political upheaval and dynastic instability in the wake of Godred's demise eventually provoked Magnús Óláfsson, King of Norway to forcibly take control of the Isles before the century's end. It wasn't until the about the second decade of the twelfth century that the Crovan dynasty re-established firm control, in the person of Amlaíb, Godred's youngest son. In the mid-twelfth century, the Isles were partitioned between two rival power blocks. One faction, controlling Mann and the northern Hebrides, was led by the representative of the Crovan dynasty, Gofraid mac Amlaíb, Godred's grandson; the other faction, controlling the southern Hebrides, was ruled by Somairle mac Gilla Brigte, Lord of Argyll, husband of Ragnailt ingen Amlaíb, Godred's granddaughter. Somairle eventually forced his brother-in-law from power, and ruled the entire kingdom for almost a decade before the Crovan dynasty regained control