avid I (1084-1153), king of Scotland, was
the youngest son of Malcolm Canmore and St. Margaret, sister of
Edgar the Atheling. He became a prince of Cumbria in 1107, and
further increased his power by his marriage with Matilda,
Countess of Northampton (1110), becoming thereby an English baron.
Having succeeded to the Scottish throne in 1124, he consolidated
his realm, and, by the help of Norman knights, created the feudal
kingdom of Scotland. The general aim of his domestic policy was
to strengthen the Saxon and Norman elements, on whose support he
relied. David took up arms on behalf of his neice Matilda in 1135,
when Stephen mounted the English throne, and penetrated into
England as far as Durham, where peace was made. He undertook a
second invasion in 1138 and met with a disastrous defeat at
Northallerton, in the Battle of the Standard, and again
unsuccessfully invaded England in 1140. Consult Skenes Celtic
Scotland and P. Hume Browns History of Scotland.
[World Wide Illustrated Encyclopedia, 1935]