Diane Keaton’s Dating History — From Woody Allen to Warren Beatty

The late Hollywood legend was relatively private when it came to her personal life. Though she had a few high-profile relationships with well-known industry giants, she chose not to marry.

With Diane Keaton's tragic and sudden passing this past weekend, there has been a renewed interest in the actress's life, particularly her former romantic partners. Keaton previously dated actor and filmmaker Woody Allen, film star Al Pacino, and director Warren Beatty.

Although her romances with these Hollywood stars ran their course, she once referred to them as her "many loves" and remembered them fondly. They went on to find new loves, with two of them even marrying, but Keaton never wed.

In fact, she was glad she never married. "[I'm not sad] because I think that I needed more of a maternal aspect," she told People in 2018. She adopted her daughter, Dexter, in 1996, and her son, Duke, in 2001.

"I don't think it would have been a good idea for me to have married, and I'm really glad I didn't, and I'm sure they're happy about it, too," Keaton joked about her exes. Her stance on marriage dated back to her teen years.

"I remember one day in high school, this guy came up to me and said, 'One day you're going to make a good wife,' " she recalled. "And I thought, 'I don't want to be a wife. No.'" Take a look at Keaton's dating history below.

Woody Allen

Keaton first met Allen in 1969 when she auditioned for his play, "Play It Again, Sam." The pair were initially shy around each other, but eventually formed a connection and fell in love. They went on to collaborate on several successful projects together.

Among their most well-known films is the 1972 film adaptation of "Play It Again, Sam" and 1975's "Love and Death," but none surpassed 1977's "Annie Hall," which earned Keaton an Oscar for her role as the title character.

Her romance with Allen lasted until the early 1970s, but many speculated "Annie Hall" was based on their relationship. Keaton addressed the speculation during an interview with the New York Times.

"It's not true, but there are elements of truth in it. It's about a relationship, and because Woody and I know each other well and have had a relationship, there's a quality of truth in it. My real last name is Hall, for instance," she said. She and Allen remained good friends following their romance until she passed.

Al Pacino

Keaton and Pacino played on-screen wife and husband Michael and Kay Corleone in the famed "Godfather" films. While shooting the movies, Keaton admitted she developed a crush on Pacino.

"I was mad for him. Charming, hilarious, a nonstop talker," she told People in a 2017 issue for PEOPLE. "There was an aspect of him that was like a lost orphan, like this kind of crazy idiot savant. And oh, gorgeous!"

The two dated on and off throughout the 1980s. Keaton wanted marriage, but Pacino wouldn't commit. After she gave him an ultimatum, they went their separate ways. "I worked hard on that one," she said. "I went about it in not a perfect way."

Years later, they remained good friends. When Keaton received the American Film Institute's 45th Lifetime Achievement Award in 2017, Pacino said to her from the stage at Dolby Theater, "You're a great artist. I love you forever."

Warren Beatty

Following her split from Pacino, Keaton moved on with Beatty. The former couple, who had initially worked together in Beatty's 1981 film "Reds," dated for five years. In "Reds," they played onscreen love interests.

"There's a scene where we're fighting," Keaton once said of the romantic drama, "That felt really real." After their relationship ended, Beatty went on to marry Annette Bening, but the two still remained friends for years.

"He is just a brilliant character," Keaton said of Beatty. "So complex and charming. He should have made more movies." In a 2016 interview, Beatty also sang her praises.

"I love her," he gushed. "She's a combination of integrity and humor and intelligence and fairness and, did I say beauty? A brilliant comedic sense."