Charlotte Maria Radclyffe, 3rd Countess of Newburgh

Charlotte Maria Radclyffe, 3rd Countess of Newburgh or Charlotte, Countess of Derwentwater (née Livingston) (1694 – 4 August 1755) was a Scottish Jacobite sympathiser. A suo jure Countess, she was forced into a marriage that gave her earldom to her new husband.

Early life She was the daughter of Charles Livingston, 2nd Earl of Newburgh (1664–1694) and Lady Frances Brudenell (d. 1736), an Irish aristocrat who is best known as the subject of a satire in which she was portrayed as the leader of a society of Lesbians. As her father died before she was born, Charlotte became the Countess of Newburgh upon her birth in 1694. After her father's death, her mother remarried to Richard Bellew, 3rd Baron Bellew of Duleek. From her mother's second marriage, she had a younger half-brother, John Bellew, 4th Baron Bellew of Duleek.

Lady Anne Clifford (1715–1793), who married Gen. John Joseph Mahony, Count Mahony, eldest son of Count Daniel O'Mahony, Count of Castile, in 1739. After his death, she married Don Carlo Severino in 1773. Together, they had six children, several of whom were born in Rome:

Death and descendants Through her eldest daughter, she was a grandmother of Countess Cecilia Carlotta Francisca Anna Mahony, Countess Mahony (1740–1789), who married Prince Benedetto Giustiniani, 5th Prince of Bassano Romano and Duke of Corbara (d. 1793) in 1757. Charlotte lived until 4 August 1755, when she was buried with her husband at St Giles in the Fields. Their son James Bartholomew Radclyffe, 4th Earl of Newburgh became the Earl and his son was the next but he had no children. The earldom returned to the descendants of Thomas Clifford, starting with Prince Vincenzo Giuseppe Filippo Graziliano Giacopo Gasparo Baldassaro Melchior Domenico Giustiniani, 6th Prince of Bassano Romano, Duke of Corbara and de jure 6th Earl of Newburgh. His younger brother was His Eminence Prince Giacomo Giustiniani, President of the Congregation of the Reverend Basilica of Saint Peter, last member of the Giustiniani de Banca Family, who died the night of 23–24 February 1843.