Henry FitzRoy, 1st Duke of Richmond and Somerset, Earl of Nottingham, born June 15, 1519, at the Priory of St Lawrence at Blackmore, Essex, England, died July 23, 1536, at St. James's Palace, London, England. Henry had an affair with Elizabeth Blount while he was married to Catherine of Aragon. Henry Fitzroy was the illegitimate child of Henry VIII, the second Tudor monarch, with his mistress Elizabeth Blount. In 1512, when Henry VIII was approximately twenty-one years of age a beautiful young woman came to court. Henry FitzRoy, 1st Duke of Richmond and Somerset (15 June 1519–23 July 1536) was the son of King Henry VIII of England and his mistress, Elizabeth Blount. from a miniature picture in the collection of the Earl of Orford . Death: Henry Fitzroy, Duke of Richmond and Somerset, died on the 22nd July 1536 (some historians say that it was the 23rd) at St James’s Palace. Her name was Elizabeth “Bessie” Blount and at that time she … Henry FitzRoy was the son of King Henry VIII of England and his teenage mistress, Elizabeth Blount, the only illegitimate offspring that Henry acknowledged. Henry Fitzroy, Duke of Richmond. Thank you to Sarah Bryson for writing this article on Henry Fitzroy, 1st Duke of Richmond and Somerset. When Henry VIII began the process of having his marriage to Catalina of Aragon annulled, it was suggested that Fitzroy marry his own half-sister Mary in order to prevent the annulment and strengthen Fitzroy's claim to the throne.