Proper noun
Northern Isles
A pair of archipelagos off the north coast of mainland Scotland, comprising Orkney and Shetland.
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 the Crown of Scotland, Nicolson (1972) p. 45 a process confirmed by Parliament in 1472. Source: Internet
This long twilight is known in the Northern Isles as the "simmer dim". Source: Internet
NorthLink Ferries’ freight service plays a vital part in the Northern Isles supply chain and will continue to provide daily connections to and from the Northern Isles in tandem with the passenger vessel schedule. Source: Internet