Royal Navy a major naval power in the North Sea. The development of naval power allowed Robert to successfully defeat English attempts to capture him in the Highlands and Islands and to blockade major English controlled fortresses at Perth and Stirling, the last forcing King Edward II to attempt the relief that resulted at English defeat at Bannockburn in 1314. Scottish naval forces allowed invasions of the Isle of Man in 1313 and 1317 and Ireland in 1315. They were also crucial in the blockade of Berwick, which led to its fall in 1318. With the Viking era at an end, and
Battle of Turnberry the castle. Henry de Percy was forced to leave the castle after this defeat. Battle of Turnberry The Battle of Turnberry was a battle fought in February 1307 during the Scottish Wars of Independence near Turnberry, Ayrshire, Scotland. King Robert I of Scotland's invasion of his ancestral lands in Annandale and Carrick began in 1307. The Carrick invasion force was led by Robert, his brother Edward de Brus, James Douglas, Lord of Douglas and Robert Boyd. The force comprised thirty three galleys. They sailed to Turnberry and landed near Turnberry Castle. The invasion force quickly overwhelmed the English forces of