Richard III’s son, Edward of Middleham, Prince of Wales died – April 9, 1484

The only child and heir of King Richard III died on April 9, 1484 at the age of 10 years old. The cause of his death is unknown. Some accounts say that he was taken sick and died very quickly, as if from the flu or plague, but other sources say that he was always a sickly child with a delicate constitution.