what other kingdom claimed ownership of the northern islands of scotland
Pictish
title: Scotland text: Scotland Scotland (, ) is a country that is part of the United Kingdom. It covers the northern third of the island of Great Britain, with a border with England to the south, and is surrounded by the Atlantic Ocean to the north and west, the North Sea to the east, the Irish Sea to the south-west, and more than 790 islands, including the Northern Isles and the Hebrides. The Kingdom of Scotland emerged as an independent sovereign state in the Early Middle Ages and continued to exist until 1707. By inheritance in 1603, James VI, King of Scots, became title: Northern Isles text: was the last of an unbroken line of Norse jarls, and thereafter the earls were Scots noblemen of the houses of Angus and St. Clair. In 1468 Shetland was pledged by Christian I, in his capacity as King of Norway, as security against the payment of the dowry of his daughter Margaret, betrothed to James III of Scotland. As the money was never paid, the connection with the crown of Scotland became permanent. In 1470 William Sinclair, 1st Earl of Caithness ceded his title to James III and the following year the Northern Isles were directly annexed to Scotland. From title: Kingdom of Scotland text: and successor Malcolm IV in 1157. The Treaty of York (1237) fixed the boundaries with England close to the modern border. By the reign of Alexander III, the Scots had annexed the remainder of the western seaboard after the stalemate of the Battle of Largs and the Treaty of Perth in 1266. The Isle of Man fell under English control in the 14th century, despite several attempts to restore Scottish authority. The English occupied most of Scotland under Edward I and annexed a large slice of the Lowlands under Edward III, but Scotland established its independence under figures including William title: Northern Isles text: the fate of the existing indigenous population being uncertain. According to the "Orkneyinga Saga", Vikings then made the islands the headquarters of pirate expeditions carried out against Norway and the coasts of mainland Scotland. In response, Norwegian king Harald Hårfagre ("Harald Fair Hair") annexed the Northern Isles in 875 and Rognvald Eysteinsson received Orkney and Shetland from Harald as an earldom as reparation for the death of his son in battle in Scotland. (Some scholars believe that this story is apocryphal and based on the later voyages of Magnus Barelegs.) The islands were fully Christianised by Olav Tryggvasson in 995 title: Kingdom of Scotland text: union. In 1707, the two kingdoms were united to form the Kingdom of Great Britain under the terms of the Acts of Union. Following the annexation of the Northern Isles from the Kingdom of Norway in 1472 and final capture of the Royal Burgh of Berwick by the Kingdom of England in 1482, the territory of the Kingdom of Scotland corresponded to that of modern-day Scotland, bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the southwest. The Crown was the most important element of