A historian is marking the 700th anniversary of the death of William Wallace by marching the route of his journey to execution. David Ross, convener of the William Wallace Society, is walking the route from Wallace's capture in Robroyston, Glasgow, to his death in London. The march is expected to take him nearly three weeks. After arriving he hopes to be joined by hundreds of Scots for a march to the spot where Wallace was killed in 1305. A private commemorative service will then be held inside St Bartholomew the Greater, the oldest church in London. Speaking ahead of his journey, Mr Ross said: "I realised that this day could possibly come and go and there would be no mention of Scotland's national hero, that the 700th anniversary was upon us. "It will be a strange journey for me, especially to cross the border and think about Wallace there 700 years before, every step taking him a step further away from Scotland that he loved. "This will be the mourning that Wallace never had." Mr Ross stressed the solemnity of the occasion and the importance to Scots of commemorating the "betrayal". Mr Ross will arrive in London on 23 August with an open invitation for people to join him on the final two hours of his walk along the route was dragged through the streets. A symbolic coffin will then be returned to Scotland and go on show at the Stirling Smith Museum.