 The two strongest claimants were 
Though Bruce invoked proximity of blood and claimed to have been made Tanist of the Kingdom by the then-childless Alexander III, Balliol was the genealogically senior heir, and Edward declared in his favour following an election at Berwick-upon-Tweed, 3 August 1291.King John was crowned at Scone on St Andrew's Day 1292.His heir apparent was his son by Isabella de Warenne,
In retaliation for this Treaty (the foundation of the Auld Alliance), Edward invaded Scotland, defeating the Scots at the Battle of Dunbar on 27 April 1296, and John was compelled to abdicate on 10 July 1296.