"Our family is heartbroken over the passing of Penny Marshall", Marshall's family said at the time of her death.
According to documents obtained by TMZ Monday from the L.A. County Coroner's Office, the 75-year-old actress died from "heart failure, heart disease and complications from diabetes", Marshall's death certificate reportedly read.
Marshall, famed for her role on the sitcom "Laverne & Shirley", died at age 75 on December 17.
Cardiovascular disease reportedly played a contributing factor as well.
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Nicholls was not out on a career best 162 with healthy contributions from Jeet Raval (74) and Colin de Grandhomme (71 not out). Latham and Nicholls put on 214 for the fourth wicket with Latham achieving his eighth century and Nicholls his fourth.
She starred as Laverne DeFazio, the Milwaukee brewery worker, alongside Cindy Williams in the hit ABC comedy show.
Penny Marshal attends the 16th annual Race to Erase MS, in Los Angeles May 8, 2009. "Penny was a tomboy who loved sports, doing puzzles of any kind, drinking milk and Pepsi together and being with her family".
The program also gave Marshall her start as a filmmaker. She did it again with A League of Their Own in 1992.
It also gave Marshall her start as a filmmaker.