Louisa Wheatley is thought to have been a lady-in-waiting to Queen Adelaide, the wife of William IV. Her husband Henry, was the Keeper of the Privy Purse to both William IV and to Queen Victoria.
His Highness of Bengal, Humayun Jah, ascended the Throne of Bengal, Bihar and Orissa after the death of his father, Wala Jah, in 1824. The present Palace of Hazarduari was erected during his reign. A miniature of the palace executed in ivory, prepared by Sagore Mistri, together with portraits of His Highness and his son and other presents were sent to King William IV, who honored the Nawab with the present full size portrait of His Majesty and conferred upon him the badge and insignia of the Royal Guelphic and Hanoverian order, still preserved in the Palace. It is therefore possible that the current ivory was one of these gifts sent to William IV and then passed by the Queen to Louisa Wheatley.