The exhibition charts the evolution of royal portrait photography from the 1920s to the present day through more than 150 items from the Royal Collection and Royal Archives.

Margaret married photographer Antony Armstrong-Jones in 1960 and together they had two children, David and Sarah. The couple split in 1976. She died in 2002 at the age of 71 after suffering a stroke.

The Earl of Snowdon, the first royal to have a vocation after founding the eponymous handmade furniture business in 1985, inherited a love of artistic craft from his father – high society photographer ...