There are many. The most recent I know of is Susannah Dunn's The Confession of Katherine Howard (told by her friend Katherine Tylney). There's also Jean Plaidy's The Rose Without a Thorn, Alisa Libby's The King's Rose, Diane Haeger's The Queen's Mistake, Ford Madox Ford's The Fifth Queen, Sarah Hoyt's No Will But His, Margaret Doner's Lies and Lust in the Tudor Court, and Jessica Smith's Katherine Howard, just to name the ones I've read or own.
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