There have been plenty over the years, and these images just scratch the surface.
Here are 12 images from occasions that members of the royal family paid a visit to Northumberland.
5. Berwick, 2001
The Queen on a walkabout. Photo: no
6. Berwick, 1956
The Queen is presented with a salmon on her visit to Berwick in 1956. She is pictured with Mayor Mrs Adams by the Royal Tweed Bridge. Photo: Unknown
7. Otterburn, 2016
Sophie, Countess of Wessex visited Northumberland as part of a palace to palace bicycle ride celebrating the 60th anniversary of the Duke of Edinburgh Award. Photo: Mary Turner/Getty Images
8. Berwick, 2020
Prince William, then Duke of Cambridge and Catherine, then Duchess of Cambridge meet schoolchildren at Holy Trinity Church of England First School. Photo: ANDY COMMINS/POOL/AFP via Getty Images