King Edward died on April 9, 1483 at only 40 years of age. The cause of his death is not known for sure. It was likely due to his unhealthy lifestyle but there is also a theory that he was poisoned by the Woodvilles. Edawrd took the throne when he was only 18 years old and like most youths, he loved to have a good time, especially with women. Toward the end of his life, his days of soldiering and hard living had clearly taken their toll.