List of Scottish monarchs
The Kingdom of the Picts just became known as Kingdom of Alba in Gaelic, which later became known in Scots and English as "Scotland"; the terms are retained in both languages to this day. By the late 11th century at the very latest, Scottish kings were using the term "rex Scottorum", or King of Scots, to refer to themselves in Latin. The Kingdom of Scotland was merged with the Kingdom of England to form a single Kingdom of Great Britain in 1707. Thus Queen Anne became the last monarch of the ancient kingdoms of Scotland and England and the first of Great Britain, although the kingdoms had shared a monarch since 1603 (see Union of the Crowns). Her uncle Charles II was the last monarch to be crowned in Scotland, at Scone in 1651. He had a second coronation in England ten years later.
Constantine III of Scotland
Constantine is not known to have any descendants and he was the last of the line of Áed (Áed mac Cináeda) to have been king. With his death, the rivalry between descendants of Causantin and Áed gave way to a rivalry between two new royal lines, both descended from Causantin. One line descended from Kenneth II and was represented by his son Malcolm II. The other line descended from his brother Dub, King of Scotland (reigned 962-967) and was represented by Kenneth III.