Prince William and Catherine, the Duke and Duchess of Cambridge, also known as the Earl and Countess of Strathearn, visit Abertay University in Dundee, Scotland, October 23, 2015. William and his wife Catherine, known as Kate, on Friday began a series of official visits in Scotland. The parents of two are in Dundee all day to highlight mental health issues affecting young people and their families. In Scotland, the Duke and Duchess of Cambridge are known as the Earl and Countess of Strathearn. REUTERS/David Cheskin/Pool TPX IMAGES OF THE DAY