This is the signature of Thomas Howard. Duke of Norfolk. He was Anne Boleyn’s maternal uncle, the brother of Elizabeth Howard. He was also the uncle of another of Henry’s queens; Katherine Howard. 
In a post I hope to put up soon, I will discuss many theories people have put forth, on what exactly his role in Anne’s and Katherine’s rise was, and his personal relationship to both of them. 

This is the signature of Thomas Howard. Duke of Norfolk. He was Anne Boleyn’s maternal uncle, the brother of Elizabeth Howard. He was also the uncle of another of Henry’s queens; Katherine Howard. 

In a post I hope to put up soon, I will discuss many theories people have put forth, on what exactly his role in Anne’s and Katherine’s rise was, and his personal relationship to both of them.