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In page Joan Champernowne:

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Joan was born in Modbury, Devon on an unknown date, but no later than 1513,[citation needed] the daughter of Sir Philip Champernowne and his wife, Katherine Carew.[1] She was the sister of Katherine Ashley née Champernowne, the governess of Queen Elizabeth I.[2][3] Before her marriage, she served as maid-of-honour to Catherine of Aragon.[4]