When Wallace was growing up, King Alexander III ruled Scotland. His reign had seen a period of peace and economic stability. On 19 March 1286, however, Alexander died after falling from his horse. The heir to the throne was Alexander's granddaughter, Margaret, Maid of Norway. As she was still a child and in Norway, the Scottish lords set up a government of guardians. Margaret fell ill on the voyage to Scotland and died in Orkney in late September 1290. The lack of a clear heir led to a period known as the "Great Cause", with a total of thirteen contenders laying claim to the throne. The most credible claims were John Balliol and Robert Bruce, grandfather of future king.