Tibbers Castle led to a succession crisis resulting in English rule of Scotland under Edward I. Robert the Bruce's family was one of the claimants and in 1306 he was crowned king, leading to war with England. The first phase of Bruce's campaign in 1306 was to capture the English-held castles of Ayr, Dalswinton, Inverkip and Tibbers. Control was given to John de Seton until the English recaptured the castle from the Scots, hanging the defenders, and a larger garrison, this time numbering 54, was installed. In 1313 the Scots regained control of the region. From there Tibbers Castle remained in Scottish
History of the Scots language the land of the English in the Kingdom of the Scots" and why the early 13th century author of "de Situ Albanie" thought that the Firth of Forth "divides the kingdoms of the Scots and of the English". Most of the evidence suggests that English spread further into Scotland via the burgh, proto-urban institutions which were first established by King David I. Incoming burghers were mainly English (especially from Northumbria, and the Earldom of Huntingdon), Flemish and French. Although the military aristocracy employed French and Gaelic, these small urban communities appear to have been using English as something more than