Refer to the passage below and then answer the question afterwards in the same language as the passage:

Passage: Anne was born at 11:39 p.m. on 6 February 1665 at St James's Palace, London, the fourth child and second daughter of the Duke of York (afterwards James II and VII), and his first wife, Anne Hyde. Her father was the younger brother of King Charles II, who ruled the three kingdoms of England, Scotland and Ireland, and her mother was the daughter of Lord Chancellor Edward Hyde, 1st Earl of Clarendon. At her Anglican baptism in the Chapel Royal at St James's, her older sister, Mary, was one of her godparents, along with the Duchess of Monmouth and the Archbishop of Canterbury, Gilbert Sheldon. The Duke and Duchess of York had eight children, but Anne and Mary were the only ones to survive into adulthood.As a child, Anne suffered from an eye condition, which manifested as excessive watering known as "defluxion". For medical treatment, she was sent to France, where she lived with her paternal grandmother, Henrietta Maria of France, at the Château de Colombes near Paris. Following her grandmother's death in 1669, Anne lived with an aunt, Henrietta Anne, Duchess of Orléans. On the sudden death of her aunt in 1670, Anne returned to England. Her mother died the following year.As was traditional in the royal family, Anne and her sister were brought up separated from their father in their own establishment at Richmond, London. On the instructions of Charles II, they were raised as Protestants. Placed in the care of Colonel Edward and Lady Frances Villiers, their education was focused on the teachings of the Anglican church. Henry Compton, Bishop of London, was appointed as Anne's preceptor.Around 1671, Anne first made the acquaintance of Sarah Jennings, who later became her close friend and one of her most influential advisors. Jennings married John Churchill (the future Duke of Marlborough) in about 1678. His sister, Arabella Churchill, was the Duke of York's mistress, and he was to be Anne's most important general.In 1673, the Duke of York's conversion to Catholicism became public, and he married a Catholic princess,...

Question: When did Anne's grandmother die?
1669