John Francis attempts to murder Queen Victoria as she drives down Constitution Hill in London with Prince Albert.

Victoria was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until her death in 1901. Her reign of 63 years and 216 days, which was longer than those of any of her predecessors, constituted the Victorian era. It was a period of industrial, political, scientific, and military change within the United Kingdom, and was marked by a great expansion of the British Empire. In 1876, the British parliament voted to grant her the additional title of Empress of India.

Constitution Hill is a road in the City of Westminster. It connects the western end of The Mall with Hyde Park Corner, and is bordered by Buckingham Palace Gardens to the south, and Green Park to the north. At the top of the rise in the roadway at the Corner is the Wellington Arch, near where the road is flanked by the Memorial Gates war monument.

Prince Albert of Saxe-Coburg and Gotha was the husband of Queen Victoria. As such, he was consort of the British monarch from their marriage on 10 February 1840 until his death in 1861. Victoria granted him the title Prince Consort in 1857.