Obituary
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Allison Andreoli left this world on March 4, 2026, at just 40 years old, leaving behind a glow that will not fade. Her life, though far too short, was vivid — full of color, laughter, and a spirit that refused to be anything but wholly, fiercely alive.
Born on November 22, 1985, in Oceanside, New York, Allison arrived with a spark that only grew brighter with time. She was funny in a way that could break through the darkest moments, vibrant like sunlight dancing on water, stubborn in the ways that made her strong, and wild in the ways that made her unforgettable. She moved through the world with a fire that warmed everyone lucky enough to stand close to it.
Her greatest love — her truest calling — was motherhood. Her four children, AdalynnMae, WilliamEdward, ColtonJack, and DamienRobert Seiberlich, were the center of her universe. She filled their days with warmth and wonder, with silliness and fierce protection, with lessons in courage and kindness. In them, her spirit continues — bold, bright, and unbreakable. Allison shared her heart and her life with her fiancé, Billy Seiberlich, whose love for her was steady and deep. Together, they built a world full of devotion, laughter, and the kind of everyday magic that comes from truly choosing one another.
She is survived by her children; her fiancé Billy; her sisters — Marion Attias, Laura Chinnici, and Alexandria Sanvicente; her brother-in-law Jaime Sanvicente; her stepfather John Armstrong; her fiancé’s family, who embraced her as their own; and numerous nieces and nephews who adored her. Allison was preceded in death by her mother, Patricia Armstrong; her father, John Andreoli; her brother-in-law, James Chinnici and her fiancé’s father, William Seiberlich. We imagine them welcoming her with open arms, their spirits intertwined once more.
Those who knew Allison will remember the way she made people feel — seen, understood, loved without hesitation. They will remember her wild, beautiful energy, her resilience, her humor, and the way she lived unapologetically, fully, fiercely herself. Her light remains — not dimmed, only transformed. It lingers in her children’s smiles, in the stories we tell, in the love she gave so freely. And though she has left this world, her spirit continues to move through ours, wild and bright as ever.
Relatives and friends are invited to her funeral on Friday, March 13, 2026, at Holy Innocents Church, 1337 E. Hunting Park Avenue, Philadelphia, PA 19124. Visitation begins at 9 AM followed by a funeral Mass at 10 AM. Interment is private.
Since Allison was a life-long animal lover, your memorial donation to the Women’s Animal Center would be appreciated. https://womensanimalcenter.org/
To plant trees in memory, please visit the Sympathy Store.
1419 E. Hunting Park Avenue, Philadelphia, PA 19124

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