Prosecutors in Naples are probing whether to lay charges of instigating suicide after the death of a 31-year-old woman who had fought unsuccessfully to have a video showing her having sex removed from the internet.

Chief prosecutor Francesco Greco said Friday that the probe is being co-ordinated with an investigation into a defamation complaint that Tiziana Cantone brought against four individuals last October.

A year ago, Cantone sent the video of herself having sex to her ex-boyfriend and another three men who put it online.

The video went viral and was viewed by nearly a million people. Her words during the filming, "Are you filming? Bravo," became an internet catchphrase.

Cantone won the "right to be forgotten" court case that ruled the video should be removed from various sites including Facebook, but was ordered to pay some $29,500 in legal costs.

Wracked with shame, Cantone moved from her hometown of Naples to Tuscany and tried to change her name.

Her body was found at her aunt's home, near Naples, on Tuesday after she had committed suicide.

During the Thursday funeral, Cantone's mother had to be supported, and at one point carried, by family and friends as she followed the white coffin carrying her daughter.

Her mother said "she wasn't a porn star, she wasn't an escort, just give her back some dignity."

The family has called for an end to internet shaming, and the story has sparked angry discussion in Italy about the right to be able to remove online videos.