She is part Chilean and was born and raised in the Italian-Swiss town of Lugano, Switzerland.
[4] In 2001, she released the iconic Fussbett Sandal from recycled tires and straw, and expanded to menswear in 2002.
The brand has been worn by celebrities such as Cindy Sherman, Kyra Sedgwick and Gwyneth Paltrow.
[5] In 2012, the Castiglioni family sold 60% of Marni to Renzo Rosso's OTB Group.
[8] In 2016, Castiglioni stepped down as creative director of Marni citing a desire to focus on her personal life, and was succeeded by Francesco Risso.