One of the notable things that has changed over the years in terms of the Duke and Duchess of Cambridge’s royal tours is the rhythm of them, post-children. Unlike the Queen, who was forced to leave a young Prince Charles and Princess Anne at home while she undertook a mammoth seven-month Commonwealth tour in the early 1950s, William and Kate have always insisted that family comes first. They memorably took ten-month Prince George with them to Australia and New Zealand in 2014 – he was so popular he was dubbed ‘the Republican slayer’ – and Princess Charlotte came too when they went to Canada in 2016, and again to Poland and Germany the following year.