Flower of Scotland is a Scottish song, used frequently at special occasions and sporting events. Although there is no official national anthem of Scotland, Flower of Scotland is one of a number of songs which fulfil this role, along with the older Scots Wha Hae, and Scotland the Brave, amongst others. It was written by Roy Williamson of the folk group the Corries, and presented in 1967, and refers to the victory of the Scots, led by Robert the Bruce, over England's Edward II at the Battle of Bannockburn in 1314. In 2004, lawyers for the devolved Scottish Parliament advised that it was within the legal competence of the Scottish Parliament to choose a national anthem for Scotland, countering the suggestion that it would be a matter reserved to the Parliament of the United Kingdom. This ruling prompted some interest in the idea, and a petition to the Scottish Parliament's petitions committee supported by the Scottish Green Party was referred without recommendation to the Scottish Executive who chose to take no action, considering the issue not to be a political priority. There have been subsequent attempts to re-open the debate on a national anthem for Scotland.