Henrietta Anne of England (16 June 1644 O.S. [26 June 1644 N.S.] – 30 June 1670) was the youngest daughter of King Charles I of England and Queen Henrietta Maria. Fleeing England with her mother and governess as an infant, Henrietta moved to the court of her first cousin King Louis XIV of France, where she was known as Minette. She married her cousin Philippe I, Duke of Orléans, and became a fille de France, but their relationship was marked by frequent tensions over common suitors. Very clever, Henrietta was instrumental in negotiating the Secret Treaty of Dover against the Dutch Republic in June 1670, the same month as her unexpected death. Jacobite claims to the British throne after Henry Benedict Stuart's death descend from her daughter Anne Marie, Queen of Sardinia. Infancy in England Henrietta was born on 16 June 1644, on the eve of the Second Battle of Newbury during the Civil War, at Bedford House in Exeter, a seat of William Russell, 5th Earl of Bedford, who had recently returned to the Royalist side. Her father was King Charles I of England, her mother the youngest daughter of Henry IV of France and Marie de' Medici. All her life, Henrietta had a close relationship with her mother, Queen Henrietta Maria. Her connections with the French court as niece of Louis XIII and cousin of Louis XIV proved very useful later in life. Shortly before Henrietta's birth, her mother had been forced to leave Oxford for Exeter, where she arrived on 1 May 1644. Many thought she would not survive the birth due to her state of health. After a particularly difficult birth, Henrietta was put in the care of Anne Villiers, Countess of Morton, known at that time as Lady Dalkeith. For Henrietta's safety, the queen made her way to Falmouth and then returned to France to ask Louis XIV to assist her husband's war efforts. Arriving at Falmouth in mid-July, the queen was informed that Henrietta had been taken ill with convulsions, from which she recovered. On 26 July, Henrietta met her father, Charles I of England, for the first time. Before his arrival, he had ordered that Henrietta be baptised in accordance with the rites of the Church of England, and she was baptised Henrietta at Exeter Cathedral on 21 July. A canopy of state was erected in honour of her dignity as a princess