Rumer Rose, a three-year-old Queensland girl, died three days from her birthday after her father pleaded guilty to giving her cannabis oil to relieve her from the pain she suffered from cancer. Her father, Adam Koessler, 32, was given a two-year good behaviour bond and a $500 fine for giving her cannabis oil.

Rumer died in her sleep on Monday, Koessler said on his Facebook page named “Fearless Father” which is dedicated to helping his daughter.

“It is with heavy hearts and many tears that we bring you this update. Beautiful little Rumer Rose has been called home, passing peacefully in the early hours of this morning, Monday 9th May,” he wrote as quoted by Mail Online.

The administrators of the page also posted a message the same day, mourning Rumer’s death.

“We are sure that Rumer came to this Earth knowing that she had a monumental battle to fight, and she fought it with everything she had,” the administrators wrote. “No one could have expected that such a tiny little body could endure so much and still keep fighting back time and time again, but that’s exactly what Rumer Rose did. Now the time has come for this little warrior princess and her beautiful smile to shine down on us from the stars above.”

The toddler was diagnosed with neuroblastoma, a rare form of cancer, in 2014. She was given 50 percent chances of survival by the doctors, 9 News reported.

Koessler, who is separated from Rumer’s mother Sacha Maujean, was not convicted of the crime for his actions. It was Maujean who first noticed a strange smell in her daughter’s food and informed the doctor, which led to the arrest of Koessler outside Brisbane’s Lady Cilento Children’s Hospital last year. This started a huge debate on the use of cannabis for medicinal purposes in Australia.

Rumer’s father started administering cannabis oil as medication in 2014 before the traditional treatment begun.