An ice-addicted paedophile who raped seven women as young as 13 has been buried in an unmarked plot.

Mustafa Kayirici, 31, was unceremoniously laid to rest at Rookwood Cemetery in Lidcombe, western Sydney, on Friday.

Kayirici had been battling an incurable disease before dying at Sydney's Prince of Wales Hospital on January 25.

He had been serving a 34-year prison sentence after sexually assaulting a child over a five-hour-long period in 10 different locations in 2016.

The jail term was added on top of the 38-year sentence he was already serving for raping and robbing seven escorts in the same year.

An unmarked grave is all that remains of the serial rapist, with the burial site indistinguishable from its surroundings.

 Cemetery workers used an excavator to dig the grave and filled the hole with dirt once Kayirici's body had been placed at the bottom of it.

The mound of overturned soil has been left unadorned, unlike the surrounding plots that have potted plants and flowers left on them.

The convicted paedophile was given 12 months to live last year after being diagnosed with a terminal illness and undergoing chemotherapy in prison.

In August 2020, a judge at Sydney's Downing Centre District Court deemed Kayirici so evil that his last sentence wouldn't even come into effect until September 2041.

Had he survived, he would not have been eligible for release until 2066 when he would have been 76 years old.

Kayirici's rampage began on the morning of May 7, 2016, when he raped a sex worker at an apartment block in Sydney's CBD while threatening her with a butcher's knife.

Later that afternoon, he arranged to meet another istanbul escort in Parramatta where he carried out a similar attack.

She said the face-tattooed predator was 'aggressive and dominant' and called her a sl*t before he spat in her eye, beat her and brutally raped her.

'I had to fight for my life,' she said.

Kayirici told her he 'loved seeing the fear in people when they can't do anything about it,' she said.

Just one week later he robbed another sex worker at knife point at her Parramatta apartment and then robbed another woman in her home in the same suburb on May 20.

On May 27, Kayirici pulled a butcher's knife on Dasha Volnoukhin - a 22-year-old Canadian model and escort who was living in Parramatta.

Eerie CCTV pictures showed him walking with her through the lobby of the Fiori Apartments in Parramatta and into the lift before his crime.

Ms Volnoukhin never saw her abuser suffer the consequences of his depraved acts as she died in the months before his sentencing hearing.

The cause of her death cannot legally be published.

Within moments of Ms Volnoukhin letting him inside the apartment, he took a 'large butcher style knife' from a kitchen drawer and told her to take off her clothes.

Kayirici told the terrified young woman - who screamed upon seeing the knife - to take off her clothes and then carry out sex acts on him.

'The man then yelled at me ''don't f***ing scream'' (and then) ''take your clothes off'',' Ms Volnoukhin told police.

'I was wearing shorts and a tank top at the time and then started to take my clothes off as I was thinking that if I don't, I will probably die.

I was so scared.'

The young woman also said in her police statement that Kayirici filmed himself sexually assaulting her while asking her 'do you like being raped?'

'The man was pointing the phone at me… then started to demand that I say things… he was saying to me: ''Say you are a sl*t'.'

The rape ended after three to four minutes, Ms Volnoukhin said, before Kayirici stole her day's earnings and left.

Just three days after the brutal attack on Ms Volnoukhin, Kayirici robed and raped another sex worker at knifepoint.

On June 19, Kayirici raped yet another woman in a Parramatta apartment block, calling her a 'little dog'.

His crime spree would continue on June 26, when he lured a 13-year-old into his car.

He then he drove the teenager to an underground car park where he forced her to undress and made her watch pornographic videos.