Originally appeared on E! Online

Al Pacino is honoring the memory of Diane Keaton .

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Days after the Oscar-winning actress died following a battle with pneumonia at the age of 79 , her "Godfather" costar — with whom she also had an on-again-off-again relationship with from 1974 to 1990 — penned a heartbreaking homage to her.

“When I first heard the news, I was shaken,” Pacino wrote in his tribute shared by Deadline Oct. 16. “Diane was my partner, my friend, someone who brought me happiness and on more than one occasion influenced the direction of my life.”

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The 85-year-old noted that although they hadn’t been together in over thirty years, “t

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