https://en.wikipedia.org/wiki/Lady_Margaret_Butler
Lady Margaret Butler, Lady Boleyn (c. 1454 – 1539) was an Irish noblewoman, the daughter and co-heiress of Thomas Butler, 7th Earl of Ormond.She married Sir William Boleyn and through her eldest son Sir Thomas Boleyn, was the paternal grandmother of Anne Boleyn, second wife of King Henry VIII of England, and great-grandmother of Anne and Henry's daughter, Elizabeth I of …