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Susan Newman -- daughter of legendary actor Paul Newman -- has died ... according to an online obituary.

Newman passed away back in August -- though the obituary was only posted online earlier this week -- from "complications from chronic health conditions." Getty

Susan was born to Newman and Jackie Witte in 1953, the second of three children the couple had.

She initially pursued a career in entertainment ... appearing in productions both on and off-Broadway during the early 1970s before she grabbed a starring role in the Robert Zemeckis comedy "I Wanna Hold Your Hand," which also featured Nancy Allen . Getty

Susan eventually decided to leave the stage and screen behind to become a television producer ... she won a Golden Globe for the ABC Theatre presentation

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