Margaret spent much of her childhood with her parents and sister. Her life changed dramatically in 1936, when her paternal uncle King Edward VIII abdicated to marry divorcée Wallis Simpson. Margaret's father became king, and her sister became heir presumptive, with Margaret second in line to the throne. During the Second World War, the two sisters stayed at Windsor Castle despite suggestions to evacuate them to Canada. During the war years, Margaret was considered too young to perform any official duties and instead continued her education.