The months of November 1891 to October 1892 were critically important to Broadbent and his career, and gave him a narrow involvement in a notorious series of crimes. In November to December 1891 Broadbent was involved in saving the life of Prince George (the future King George V) from typhoid fever. At about the same time that he was involved in this he was sent a mysterious letter accusing him of murdering a prostitute named Matilda Clover the previous October with poison. This letter demanded a huge blackmail amount to avoid ruin. Broadbent wisely sent the letter to Scotland Yard. In January 1892, he was sent for by the Royal Family in an attempt to save Albert Victor, Duke of Clarence and Avondale the older son of the Prince and Princess of Wales and "heir presumptive" to the throne of England. The Prince, known as "Prince Eddy" to the public (and nicknamed "Collars and Cuffs" due to some wardrobe choices he made) had caught a virulent strain of influenza. Broadbent tried everything he could to save the Duke, but on 14 January 1892 the Duke died. However, the Prince of Wales sent Broadbent a letter thanking him for his endeavours, that preserved for him and his wife one of their sons.