Hi, sorry, I don’t know of a book that goes over that specific topic in depth. Ives’ bio of Anne…analyses her tenure there, I would say, but there’s more evidence and discussing what narrative this evidence presents than analysis itself (if memory serves).
Here’s an article that might help, though:
Anne Boleyn’s Childhood and Adolescence by Retha Warnicke sort of touches on this; her theory is that Anne’s birthdate was indeed 1507, and that the explanation for her being at that court at such a young age is that she did not start out as Margaret’s maid of honour, but was “in residence in the palace with the children, the nieces and nephews whom Margaret was raising: Charles (future Holy Roman Emperor), Isabella (future Queen of Denmark) and Mary (future Queen of Hungary).”


