Orderic Vitalis wrote that in the year 1130, Óengus with Máel Coluim mac Alaxandair invaded Gaelic Scotia with 5000 warriors.
The Moravians were met by King David's general, an old Anglo-Saxon noble named Edward Siwardsson, causing the Battle of Stracathro.
[3] The Annals of Innisfallen makes clear that what Orderic Vitalis wrote regarding the battle having taken place in Scotia indicates that it was an invasion.
The Scoti then invaded Moray, which, as Orderic Vitalis put it, "lacked a defender and lord.
After his death in 1147, it was to some extent colonized by King David's French, Flemish and English followers, although in the longer term, most of these became Gaelicized.