sentences:  This may be relevant, since both these brothers and a certain Eric have been described as rulers of 'the Isles' (Hebrides) (see below).In a letter addressed to Pope Boniface VIII, King Edward I (r. 1272–1307) remembered a certain Eric ("Yricius") as having been a king of Scotland subject to the English king.In the 19th century, a case had also been made for Harald Bluetooth King of Denmark (d. 983) as being Eric's true father.