Born on 2 May 1925 in Zofingen, Switzerland,[1] Aeppli spent her childhood in Basel where she attended the School of Decorative Arts.

Her father was a Waldorf educator and child development author, Willi Aeppli, who worked with Rudolf Steiner.

From 1954 to 1960 Aeppli and Tinguely shared a living and working space, at the Impasse Ronsin, opposite Constantin Brâncuși's which had been there since 1916.

[4] They belonged to the Parisian avantgarde with other artists Daniel Spoerri, Yves Klein and Niki de Saint-Phalle.

Fifteen years later, she decided to combat poverty, oppression and ignorance by creating the Myrrahkir Foundation.