Sian Barbara Allen, the beloved star of The Waltons, has died. She was 78.

The actress died of Alzheimer’s in Chapel Hill, N.C., on Monday, March 31, an online obituary announced.

“She lived her final year of life in North Carolina, surrounded by all of her favorite things, new friends, and more time with [her daughter] Emily than she’d had in 35 years,” the obituary stated.

Allen is survived by her daughter Emily Fonseca, two sisters, Hannah Davie and Meg Pokrass, nephew, Miles Bond, ex-husband, Peter Gelblum and grandson, Arlo Fonseca, who, per the obituary, “made her laugh more than anyone could dream.”