John Julius Norwich was born in 1929. After National Service, he took a degree in French and Russian at New College, Oxford. In 1952 he joined the Foreign Service, serving at the embassies in Belgrade and Beirut and with the British Delegation to the Disarmament Conference at Geneva.

His publications include The Normans in Sicily; Mount Athos (with Reresby Sitwell); Sahara; The Architecture of Southern England; Glyndebourne; and A History of Venice. He is also the author of a three-volume history of the Byzantine Empire. He has written and presented some thirty historical documentaries for television, and is a regular lecturer on Venice and numerous other subjects.

Lord Norwich is former chairman of the Venice in Peril Fund, co-chairman of the World Monuments Fund and a former member of the Executive Committee of the National Trust. He is a Fellow of the Royal Society of Literature, the Royal Geographical Society and the Society of Antiquaries, and a Commendatore of the Ordine al Merito della Repubblica Italiana. He was made a CVO in 1993.