Ida Schweighauser became Friedel Grieder when she married Ernst Grieder in Switzerland in 1913. According to Wikipedia she not only changed her surname to Grieder, but also changed her given name from Ida to Friedel. It was not explained why. They had three children, one of whom died shortly after birth. The family lost their money during World War I. Friedel’s husband died in 1927, and their daughter Rösli died in 1929 when she was only 12 years old. In the same year Friedel Grieder, then age 39,entered into psychological treatment to cope with the tragedy in her life.
Her treatment included art therapy, and her talent was immediately evident. She started sculpting, and created many sculptures of young children. Two years later, in 1931, she opened her studio in Kreuzlingen, Switzerland. Grieder taught and gave art therapy at a sanatorium in Kreuzlingen. Several of her works are on public display in Kreuzlingen. Dreispitzpark Mädchen sits in Dreispitzpark. Wehrlischulhaus Mädchen is by the military schoolhouse. Both portray a girl about 12 years old, the age at which Rösli Grieder died. Friedel Grieder died in 1980 at age 89.