Prince William, the son of Prince Charles and the late Princess Diana, attended the prestigious Eton College. After graduating, he spent a year participating in British Army training in Belize and working as a volunteer with Raleigh International in southern Chile. He then attended the University of St Andrews in Scotland, graduating in 2005. That year, he was accepted to the Royal Military Academy Sandhurst. What is William's position in the line of succession to the British throne?