Sigrid Reingruber was born in 1980 in Gmunden, Austria. Since 1995, she worked daily in the studio of the Lebenshilfe OÖ support centre. Reingruber used various artistic strategies, continually forming new relationships between the symbols of the circle, cross or triangle. Or she worked on a large scale with gestural splatter or spray paintings. She created her works by the multiple and permanent repetition of a single symbol. The artist died suddenly in December 2023.