The duel between Lord Castlereagh and George Canning occurred on Putney Heath, reflecting the intense rivalries within the British political landscape during the early 19th century. Castlereagh, serving as the Secretary of War, and Canning, the Foreign Secretary, had long been embroiled in disputes over Britain’s foreign policies, particularly regarding relations with France and Spain. Their differences were exacerbated by personal animosities, with both men holding strong convictions about their respective policies and political strategies.

On the fateful day, both men arrived at Putney Heath with their seconds. The duel was fought under classical rules of honor, with both men armed with pistols. After exchanging fire, Castlereagh managed to wound Canning in the thigh, but the injury was not fatal. This incident, while not leading to a serious injury, brought to the forefront the grave tensions and the culture of dueling that was prevalent among the British elite of that era.

Dueling was considered a way to resolve personal and political disputes, but it was increasingly frowned upon in society. This incident highlighted the volatility of British politics and the personal stakes that often accompanied political disagreements. The duel served as a notable example of the extreme measures taken by politicians to defend their honor and positions during a time of significant political instability in Europe.