We have determined Sinéad O’Connor’s official cause of death.

One year after her death in July 2023, the Irish Independent revealed, citing the Grammy winner’s death certificate, that she died of chronic obstructive lung disease and asthma.

According to the source, O’Connor died as a result of “exacerbation of chronic obstructive pulmonary disease and bronchial asthma together with low-grade lower respiratory tract infection,” according to the certificate.

The Irish Independent reports that her former husband John Reynolds legally documented the “Nothing Compares 2 U” singer’s death in Lambeth, London, on Wednesday, July 24. Julian Morris, the senior coroner for Inner South London, confirmed her death after a post-mortem examination, according to the source.

On Sunday, July 28, the coroner’s office did not immediately reply to people’s request for further information.

On July 26, 2023, O’Connor, 56, was found “unresponsive” at her London home.

The Coroner Court’s website stated at the time that there was no given medical cause shortly after her death, a representative for Scotland Yard informed the public that they were not treating it as suspicious.”

The London Inner South Coroner’s Court then published a statement disclosing that she died as a result of natural causes and that it had no further role.

Her three children survive the musician. Shane, her son, died by suicide in 2022 at the age of 17.

Earlier this week, the director of O’Connor’s documentary, Nothing Compares, revealed that the film will be free to see for the next seven days on La Cinéma Club.

Kathryn Ferguson, the filmmaker, noted on Instagram that “many people have reached out from around the globe, asking how they can view it” since its premiere in 2022.

“This includes many who lack access to streaming platforms or live in regions where the film isn’t available,” according to Ferguson.

She concluded: “Now, everyone can watch it and honor Sinéad’s extraordinary talent and her unwavering commitment to standing up for the oppressed.”