A deeply moving tragedy unfolded in Mogi Guaçu, Brazil, when Cibele Marchis, 28, and her mother, Maria Elisabete Nogueira, aged 56, succumbed to cancer within a mere 10 hours of each other. Cibele passed away on 24 September at approximately 4 p.m. in a local hospital, while Maria was sedated in a different hospital, unaware of her daughter’s passing. Tragically, Maria followed her daughter into the afterlife just ten hours later.
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Cibele was diagnosed with an aggressive form of adrenal cancer in 2024, while her mother, Maria, faced her own battle, diagnosed with pancreatic cancer a year later. Their untimely deaths have left a profound void in their family, particularly for Cibele’s father, who now finds himself a childless widower. Rowilson Leandro da Costa, Cibele’s cousin, spoke about the overwhelming sense of loss the family is enduring, stating, “He lost his family. To come home and find no one there anymore — it’s sad, difficult.”
In a poignant revelation, it emerged that both Cibele and Maria had made a specific request to their family: they did not wish to know if the other passed away while they were still alive. According to Rowilson, both women had discussed this matter — sometimes light-heartedly, other times with gravity. “They even talked about it, sometimes jokingly, sometimes seriously — and it happened. Neither of them knew about the other’s death. It’s truly astonishing,” he said, highlighting the profound bond they shared.
Cibele, a digital marketer, had chronicled her journey battling cancer on social media. In an Instagram post from October 2025, she described her diagnosis: “A year ago, I discovered that I had a rare adrenal cancer — a 10 cm tumour that had already taken over my kidney.” Despite her struggle, Cibele’s perspective remained resilient as she commented on the lengthy road to diagnosis and her experience of enduring significant pain leading to further medical investigations.
She underwent three surgeries, with the last resulting in a severe infection that saw her spend 20 days in intensive care. “Today, I’m on my eighth cycle of chemotherapy,” she shared in a post filled with photographs reflecting her time in hospital. Cibele’s messages resonated with many, particularly when she expressed: “As long as your only problem is money, be grateful. It’s worse to face something that not all the money in the world can solve,” as she shared a video of herself receiving treatment.
The overwhelming love and connection shared between Cibele and Maria were evident, and their family held a joint burial service for them. Their final resting place became a testament to the inseparable bond between mother and daughter, one shattered by the cruel realities of cancer.
The grief-stricken family, now devoid of these two significant lives, is left to grapple with the reality of life without them. Cibele’s father, in particular, faces the sorrow of returning home to a stark silence, a lingering reminder of the love and laughter that once filled their home.
As the community mourns the departure of Cibele Marchis and Maria Elisabete Nogueira, their story serves as a heartbreaking reminder of the fragility of life and the deep bonds that tie families together. In the face of adversity, the love these two women shared will carry on in the hearts of those who knew them, forever remembered in their family’s narrative of love, struggle, and profound loss.