It was the 23rd May 1308. By the end of this eventful day, there would be a significant and dramatic turn in the fortunes of King Robert the Bruce. Because, it was on this day, 700 years ago, at The Battle of Barra, that he finally and unequivocally defeated the man who at that point in time was his greatest and most despised enemy. That man was John Comyn, 3rd Earl of Buchan.