Norse–Gaels in the context of "Kingdom of the Isles"

The Kingdom of the Isles, also known as Sodor, was a Norse–Gaelic kingdom comprising the Isle of Man, the Hebrides and the islands of the Clyde from the 9th to the 13th centuries. The islands were known in Old Norse as the Suðreyjar, or "Southern Isles" as distinct from the Norðreyjar or Northern Isles of Orkney and Shetland. In Scottish Gaelic, the kingdom is known as Rìoghachd nan Eilean. The territory is sometimes called the Kingdom of Mann and the Isles, although only some of the later rulers claimed that title. The historical record is incomplete, and the kingdom was not a continuous entity throughout the entire period. At times the rulers were independent of external control, although for much of the period they had overlords in Norway, Ireland, England, Scotland or Orkney. At times there also appear to have been competing claims for all or parts of the territory. The islands have a total land area of over 8,300 square kilometres (3,205 sq mi) and extend for more than 500 kilometres (310 mi) from north to south.

Viking influence in the area began in the late 8th century, and whilst there is no doubt that the Uí Ímair dynasty played a prominent role in this early period, the records for the dates and details of the rulers are speculative until the mid-10th century. Hostility between the Kings of the Isles and the rulers of Ireland, and intervention by the crown of Norway (either directly or through their vassal the Earl of Orkney) were recurring themes.

North Germanic peoples, Nordic peoples and in a medieval context Norsemen, were a Germanic linguistic group originating from the Scandinavian Peninsula. They are identified by their cultural similarities, common ancestry and common use of the Proto-Norse language from around 200 AD, a language that around 800 AD became the Old Norse language, which in turn later became the North Germanic languages of today.

The North Germanic peoples are thought to have emerged as a distinct people in what is now southern Sweden in the early centuries AD. Several North Germanic tribes are mentioned by classical writers in antiquity, in particular the Swedes, Danes, Geats, Gutes and Rugii. During the subsequent Viking Age, seafaring North Germanic adventurers, commonly referred to as Vikings, raided and settled territories throughout Europe and beyond, founding several important political entities and exploring the North Atlantic as far as North America. Groups that arose from this expansion include the Normans, the Norse–Gaels and the Rus' people. The North Germanic peoples of the Viking Age went by various names among the cultures they encountered, but are generally referred to as Norsemen.