Prince William and Kate Middleton have arrived at St Davids Cathedral to mark the anniversary of Queen Elizabeth II’s with a small private service.The Prince and Princess of Wales arrived at the cathedral in St Davids, the smallest city in Britain, in Pembrokeshire, Wales, on Friday - exactly a year after the nation’s longest-reigning monarch died peacefully aged 96.The couple, whose visit was delayed due to foggy weather, were cheered by around 300 well-wishers who had gathered in the grounds of St Davids. During their visit, William, 41, and Kate, 41, will join a short private service at the cathedral, which will include a commemoration of the late Queen’s life.