with the Scots, it seems unlikely that Scottish royal authority extended to the Gallovidian coast, and the statement could therefore be a result of confusion with Máel Máedoc's previous stay at the castle of Carlisle, then controlled by David I, King of Scotland. In fact, Máel Máedoc's visit to Cruggleton may have involved the local lord of the region, conceivably Fergus himself. The mid-twelfth-century lordship, therefore, seems to have been centred in the region of Wigtown Bay and the mouth of the river Dee. The fact that Gilla Brigte, who may well have been Fergus's eldest child, later appears to have drawn his power from west of the river Cree could be evidence that this man's mother was a member of a prominent family from this region. Such an alliance could also explain Fergus's apparent westward expansion. Whatever the case, the fact that the Diocese of Whithorn was revived in about 1128, possibly at the hands of Fergus himself, could indicate that he purposely established an episcopal see that encompassed the entirety of his domain. The apparent extension of Fergus's authority into western Galloway may have been facilitated by the disintegration of the expansive nearby Kingdom of the Isles. Upon the death of the reigning Guðrøðr Crovan, King of the Isles, the Isles plunged into chaos, enduring periods of vicious dynastic kin-strife, overwhelming Norwegian overlordship, and Irish intrusion as well. By the end of the first quarter of the twelfth century, however, Guðrøðr Crovan's youngest son, Óláfr, seems to have been reinserted into the Isles by Henry I, King of England. This restoration of the Crovan dynasty appears to have formed part of the English Crown's extension of influence into the Irish Sea region. Another aspect of this expansion was the establishment of David, a younger brother of the reigning Alexander I, King of Scotland, as Henry I's vassal. Allied to the English There is a considerable amount of evidence indicating that Fergus married a daughter of Henry I (many believe it was Elizabeth Fitzroy). For example, there is documentary evidence suggesting that all three of Fergus's children—Uhtred, Gilla Brigte, and Affraic—were related to the English royal family. Specifically, Uhtred was called a cousin of Henry I's grandson, Henry II, King of England, by Roger de Hoveden. Although sources specifically concerning Gilla Brigte fail to make a similar claim, potentially indicating that he had a different mother than Uhtred, Gilla