The document summarizes the kings of Scotland from 843 to 1625. It discusses the early Gaelic lineage established by Kenneth MacAlpin in the 9th century. From 843 to 889, the kings were direct descendants of Alpin and worked to establish laws and expand territory. The lineage became more distant after 889 but remained related. From 1406 to 1625, the line of kings included James I through VI. Mary Queen of Scots ruled after James V and had a son, James VI, who later became king of England as James I, the first Stuart ruler of Scotland.