The pair became friends at St Andrew s University - with the early days of their romance recently dramatised in the final season of The Crown - and that connection blossomed into romance.
Princess Charlotte is every big sister as she is filmed putting Louis in his place walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.