The Northern Heiress

The Northern Heiress is a 1716 comedy play by the Irish-born writer Mary Davys. Its fuller title is The Northern Heiress, or, The Humours of York. 
The play makes fun of the contemporary marriage market. It was dedicated to Princess Anne, daughter of George, Prince of Wales. Because of this it has been inferred that Davys was a strong Whig supporter of the Hanoverian Succession. However, this may have been the attempt of a struggling author to try to secure patronage in the wake of the recent Jacobite rebellion.
The cast featured John Leigh as Gamont, Christopher Bullock as Welby, William Bullock as Sir Loobily Joddrell, Sarah Thurmond as Isabella, Jane Rogers as Louisa, Mary Kent as Lady Cardivant and Frances Maria Knight as Lady Ample.