What happened to coco chanel's sister antonietta?

Coco Chanel's sister, Antonietta, known as Antoinette, lived a challenging life. After their mother passed away, she was raised in a convent along with Coco. Later, she married and had children, but her life was marked by struggles, including financial difficulties. Antonietta's story is often overshadowed by Coco's immense fame, but she remained a significant figure in Coco's early life.