Photo:Lauryn Efird/Instagram

Lauryn Efird/Instagram
Lauryn “Pumpkin” Efirdis remembering her sisterAnna “Chickadee” Cardwell, whodiedSaturday at the age of 29.
On Monday, the 23-year-old shared a series of photos on her Instagram Story of some moments spent with her sister over the years. She included a family photo of Cardwell from early in her cancer treatment.
Cardwell was diagnosed withstage 4 adrenal carcinomain January and began chemotherapy in March.
On Sunday, Shannon, 44, first announced through an Instagrampostthat Cardwell, her oldest daughter, had died.
“With the breaking heart, we are announcing that @annamarie35 is no longer with us,” she wrote alongside a family photograph. “She passed away in my home last night peacefully at 11:12 PM.”
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

“She gave one hell of a fight for 10 months she passed away with her family around her like she won’t and we will be updating y’all with more information as we get it today,” Shannon continued.
“We love y’all and continued prayers and thoughts for our family doing this difficult time,” she concluded.
Cardwell’s death comes after Shannon shared a plea onInstagramon Friday, asking her followers to keep her family in their thoughts.
“Y’all we r asking for prayers for our family as we are going through this process we really appreciate y’all for all the thoughts and prayers and we will update y’all whenever we can just know that all of your thoughts and your prayers are very much appreciated during this time,” Shannon wrote in her post, adding the hashtag “#CancerSucks.”
source: people.com