Joan Champernowne (died 1553) was a lady-in-waiting at the court of Henry VIII of England. She became a close friend to his sixth wife, Catherine Parr and married Sir Anthony Denny, who at the end of Henry's reign was widely considered to be his most trusted servant.
Joan was born in Modbury, Devon on an unknown date, the daughter of Sir Philip Champernowne. She married Sir Anthony Denny, a trusted servant of Henry VIII, by whom she had twelve children,[1] including:
Joan was considered to be both beautiful and intelligent, and a member of the burgeoning Protestant faction at court, despite her husband's pro-Catholic inclinations. She was either the sister or cousin of Kat Ashley, the governess of Elizabeth I. The Tudor historian, Joanna Denny, was a descendant of Joan's.