The woman who has won the most singles titles in tennis history is Margaret Court. She is an Australian former tennis player who was born on July 16, 1942. During her professional tennis career from 1960 to 1977, she won a total of 64 Grand Slam titles, which is a record that still stands today.

Margaret Court won 24 Grand Slam singles titles, 19 Grand Slam doubles titles, and 21 Grand Slam mixed doubles titles. She was also the first woman to win a Calendar Year Grand Slam in the Open era, winning all four major tournaments in 1970.

Court's domination of tennis in the 1960s and early 1970s was unparalleled. Her serve-and-volley style of play was aggressive and powerful, and her mental toughness and competitive drive were unmatched. She was known for her strong forehand and backhand, and her speed around the court.

Despite her impressive record, Court's career has been somewhat controversial. She has been criticized for her conservative views on social issues, including same-sex marriage and transgender rights. Some players have also questioned the legitimacy of her record, citing the fact that many of her Grand Slam titles were won before the Open era of tennis, when professionals were not allowed to compete in the major tournaments.

Despite the controversy, there is no denying that Margaret Court was one of the greatest tennis players of all time. Her dominance of the sport in the 1960s and 1970s, and her incredible record of 64 Grand Slam titles, makes her a true legend of the game.