Who is Giulia Lazzari from the story, Giulia Lazzari?

Giulia Lazzari is a dancer who goes by the stage name of La Malagueña. She is described as being a terrible dancer. Her crime is that she has fallen in love with a dangerous Indian conspirator, Chandra Lal. The agents with the British Intelligence Department hope they can use Giulia to convince Chandra to cross into French territory where he can be captured by the British government.