Short answers, pulled from the story.
Henry Norris was an English courtier who served as Groom of the Stool in King Henry VIII's privy chamber, making him one of the king's closest personal attendants. Eric Ives described him in 2004 as not only the king's confidant but perhaps the closest friend Henry had. He also held numerous other offices including Gentleman Usher of the Black Rod and chamberlain of North Wales.
Henry Norris was executed on the 17th of May 1536 after being convicted of treason and adultery with Queen Anne Boleyn. Most historians regard the charges as fabrications arranged by Thomas Cromwell with the king's approval to remove Anne and her supporters from court. The specific dates cited in the charges were implausible because Anne was in Greenwich at the times Norris was said to have been with her in Westminster.
Most historical authorities argue that the accusations against Norris were untrue and part of a plot to eliminate Anne Boleyn and her faction. The prosecution's choice of dates was described as particularly improbable and careless, as Anne was in Greenwich recovering from childbirth during the period when Norris was accused of meeting her in Westminster. Queen Elizabeth I later believed Norris died in justification of her mother's innocence.
According to Sir Robert Naunton, Queen Elizabeth I always honoured Henry Norris's memory. She believed he died "in a noble cause and in the justification of her mother's innocence." Elizabeth was not yet three years old at the time of his execution in 1536.
At the time of his death in 1536, Norris's gross annual income from crown annuities, fees of offices, farms and grants was £1241 2s 3d. Private sources raised this to £1327 15s 7d, and additional gratuities made him wealthier than many members of the nobility.
Norris was executed together with George Boleyn, Viscount Rochford (Queen Anne's brother), Sir Francis Weston, William Brereton, and Mark Smeaton. All five were convicted at a trial held at Westminster Hall on the 12th of May 1536. Smeaton, the only commoner among them, had been subjected to torture and pleaded guilty to one charge; the others pleaded not guilty.