Katharine (died 23 April 1535), sister and coheir of John Broughton, and had [Agnes]. [Burke's Peerage]
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He [William Howard] married, 1stly, before 18 June 1531, Katherine, sister and coheir of John BOUGHTON, and daughter of John B., of Toddington, Beds, by Anne, daughter and heir of Sir Guy SAPCOTE. She died s.p.m., 23 April 1535, and was buried at Lambeth, Surrey. M.l. [Complete Peerage V:9-10, (transcribed by Dave Utzinger)]