Natasha Ablett, the eldest daughter of former Geelong star Gary Ablett Senior, had been receiving treatment through the Swanston Centre in Geelong and is believed to have died in non-suspicious circumstances on Thursday night.

She was aged in her mid 30s.

Members of the Ablett family have paid tribute to Natasha on social media in the wake of her death. 

Her sister, Alisha Ablett said it was the "world's greatest gift" growing up with her.

"Natasha — you were the strongest women I've ever known with an absolute heart of gold! 1982-2017," she posted on Instagram underneath a photo of the two of them, with their two brothers.

Earlier this week, Gold Coast midfielder Gary Ablett Junior said his motivation for seeking a move back to Geelong was to be closer to family.

Ablett, 33, officially requested a trade to the Geelong Cats late last month after seven years at the Queensland-based club. 

He also unsuccessfully tried to seek a trade back to Geelong last year.

Ablett wrote an open letter on his new website, Exclusive Insight, detailing his reason for returning home on Monday.   

"As everyone knows, I have requested a trade to the Geelong Football Club," he wrote. "A lot of people are likely to be making assumptions about why I made this decision; however, only a few people know the reasons why."

"I have been privileged enough to have achieved a lot of success in the time that I have played this game."

"However, as most people know, success and sacrifice go hand in hand. As grateful as I am for my career and everything that has come with it, having it consume most of my life has meant that other areas have had to take a back seat during that time."

"My sisters, my brother, and parents all play a huge role in my life, and it's time that I make myself more available to them and others back home."

A spokesman for Barwon Heath, which operates the Swanston Centre, said a review would be undertaken to determine the circumstances of her death. 

"Our thoughts and prayers are with the family at this tragic time, and we are meeting with them to provide whatever supports they require," he said.

"We have commissioned an external review to determine the circumstances surrounding this tragic event."

A Victoria Police spokesman said Natasha's body was discovered after police were called to a Norlane address on Thursday evening.

He said emergency crews tried to revive her, but were unsuccessful. 

"The woman's death is not being treated as suspicious and police will prepare a report for the coroner," he said. 

If you or someone you know is experiencing personal problems contact Lifeline on 13 11 14.

This article first appeared on The Age website.