In 1680 she became involved in scandal. Lady Wentworth was set to marry Richard Tufton, 5th Earl of Thanet, but James Scott, 1st Duke of Monmouth, proposed himself instead although he was already married.[1] Lady Wentworth's mother swiftly brought her back to Toddington, but Monmouth followed her there and moved in with her.[citation needed] When Monmouth was implicated in the 1683 Rye House plot to kill King Charles II (Monmouth's illegitimate father) and the king's brother, Lady Wentworth joined him in exile to Holland and was received by the Prince of Orange as Monmouth's mistress. When Monmouth's uncle James II acceded to the English throne in 1685, the duke launched a rebellion that was financed in part by Lady Wentworth's jewellery.[2] After the short-lived rebellion failed, Monmouth was executed on Tower Hill but without final eucharist as he refused to acknowledge that his relationship with Lady Wentworth had been sinful.[3] A month after the execution, Lady Wentworth returned to England.
Lady Wentworth died the following April, in 1686, at age 25. She was buried at Toddington church and her mother erected a monument to her in the north transept. The barony passed to her aunt, Anne Lovelace, 7th Baroness Wentworth.
