Cory Monteith's parents die weeks apart, 12 years after “Glee” star's tragic death

Cory Monteith's mother has died, just weeks after the late actor's estranged father's death.

TheGleestar's mom, Ann Marie McGregor, died "peacefully" on June 18, according to herobituary. She was 74.

McGregor was being treated for an illness at the hospital prior to her death, according to her obituary, which states, "We would ... like to thank the doctors, nurses and palliative care staff at St. Paul's Hospital in Saskatoon for the impeccable care Ann received while there."

AdvertisementAdvertisement#«R14ekkr8lb2m7nfblbH1» iframe AdvertisementAdvertisement#«R24ekkr8lb2m7nfblbH1» iframe

Meanwhile, Monteith's estranged father, Joe Monteith, died on May 12. He was 75.

Oromocto Funeral Home

Cory Monteith's father Joe Monteith

Joe was also in treatment for a serious illness prior to his death.

"The family would like to sincerely thank the staff of the palliative care unit at the DECH for their outstanding care and compassion over the last few months," his obituary reads.

Corydied in 2013 froma combination of drug and alcohol toxicityat 31 years old. Five years after the actor's death, McGregor opened up about how she was still trying to cope with the loss of her son.

"I still can’t pick up the pieces," McGregor told PEOPLE at the time. "My world totally stopped. And I’m a different person than I was before."

AdvertisementAdvertisement#«R1bekkr8lb2m7nfblbH1» iframe AdvertisementAdvertisement#«R2bekkr8lb2m7nfblbH1» iframe

Joe had been estranged from Cory for a lot of his life, and reconnected two years before his son's death after 11 years. However, he told PEOPLE in 2013 that he was heartbroken that he didn't get to say goodbye.

"It's just ripping my insides out and tearing me apart," Joe said at the time.

FOX Image Collection via Getty

Cory Monteith as Finn Hudson on 'Glee'

Glee, on which Cory starred as high-school-quarterback-turned-choir-star Finn Hudson, was between seasons 4 and 5 at the time of his sudden death. Lea Michele, who was dating Cory on and off the show, returned to set to film season 5 just a month later.

"If we didn't show up for work then people wouldn't have work to go to," Michele recently explained. "And that was a lot of pressure for me, so I had to put my stuff aside and just show up, so that everybody could continue to work."

AdvertisementAdvertisement#«R1hekkr8lb2m7nfblbH1» iframe AdvertisementAdvertisement#«R2hekkr8lb2m7nfblbH1» iframe

Series co-creator Ryan Murphy has opened up about regrets over the decision to continue the show after the tragedy. "If I had to do it again, we would've stopped for a very long time and probably not come back," he said. "I would be like, 'That's the end' … Because you can't really recover from something like that."

Sign up for Entertainment Weekly's free daily newsletter to get breaking TV news, exclusive first looks, recaps, reviews, interviews with your favorite stars, and more.

Joe and McGregor, who got divorced in 1989, are both survived by their son Shaun Monteith. McGregor is also survived by her brothers Pat, Mike, and Pete, sister Mary, and their families. Joe is also survived by his wife Yvette Monteith, brother Phillip Monteith, stepchildren Paul McCoy and Dale McCoy, grandchildren Jenna O’Donnell, Lucy Young,Emily McCoy, and Hanna McCoy, great-grandchildren Ivan McCoy, Davy McCoy, Roxanne Paquet, Adeline O’Donnell, Aster O’Donnell, and Walter O’Donnell.

Read the original article on Entertainment Weekly