The Royal Collections includes works of art not only by the immediate families of George III and Queen Victoria but also prints, watercolours and drawings by their royal relations across Great Britain and Europe, such as Princess Caroline of Great Britain (1713-1757) and Leopold I, King of the Belgians (1790-1865).

Many of the works here were sent as gifts. It was common for members of the royal family to send each other works of art, not only for important events or dates but also as part of a regular correspondence, such as the many watercolours sent to Queen Victoria by her older half-sister, Princess Feodora of Leiningen (1807-1872) after her marriage in 1828.