Renowned British author Sophie Kinsella has passed away at the age of 55.

Kinsella, who gained widespread acclaim for her 2000 bestseller “Confessions of a Shopaholic,” was diagnosed with an aggressive form of glioblastoma brain cancer in 2022.

Her family shared the news of her passing on Instagram this Wednesday.

“It is with heavy hearts that we announce the passing of our beloved Sophie (also known as Maddy or Mummy) this morning,” the family wrote on social media. “She departed peacefully, surrounded by the things she cherished most: family, music, warmth, Christmas, and joy.”

The family added, “We are at a loss trying to envision life without her vibrant spirit and love of life.”

“Despite her illness, which she bore with unimaginable courage, Sophie counted herself truly blessed – to have such wonderful family and friends, and to have had the extraordinary success of her writing career. She took nothing for granted and was forever grateful for the love she received.”

The message concluded: “She will be missed so much our hearts are breaking.”

Kinsella revealed her health battle in April 2024.

“At the end of 2022 I was diagnosed with glioblastoma, a form of aggressive brain cancer,” she wrote on Instagram at the time. “I did not share this before because I wanted to make sure that my children were able to hear and process the news in privacy and adapt to our ‘new normal,’” she shared via Instagram at the time.

“I have been under the care of the excellent team at University College Hospital in London and have had successful surgery and subsequent radiotherapy and chemotherapy, which is still ongoing,” she explained. “At the moment all is stable and I am feeling generally very well, though I get very tired and my memory is even worse than it was before!”

She went on to “send love and best wishes” to those who also suffered from cancer.

“It can feel very lonely and scary to have a tough diagnosis, and the support and care of those around you means more than words can say,” she noted.

This story is developing.