L-to-R
On the ground:
Lady Mary Brandon
Lady Francis Grey, Marchioness Dorset
Seated:
Queen Margaret of Scotland
King Henry VIII
Queen Anne Boleyn
Mary Brandon, Duchess of Suffolk
Standing:
Henry Fitzroy, Duke of Richmond & Somerset
Margaret Douglas, Countess of Lennox
Dorothy Stanley, Countess Derby, Baroness Strange
Thomas Howard, Duke of Norfolk
Sir Henry Norris
Charles Brandon, Duke of Suffolk
Henry Brandon, Earl of Lincoln