Sir Edgar Speyer was a conspicuous figure in the financial, cultural, social and political life of Edwardian London. Head of the syndicate which financed the construction of the deep "tube lines" and "King of the Underground", he was also a connoisseur and active patron of the arts who rescued the "Prom" from collapse, enhanced the nation's musical and artistic life at his own expense and directed the funding of Captain Scott's Antarctic expeditions...