Carlo Cafiero, an Italian anarchist and close associate of Mikhail Bakunin, suffered from mental health issues which led to his hospitalization in 1887. After his release, his condition remained unstable, and he was placed under the care of Olimpia Kutuzova. Unfortunately, Cafiero's health did not improve, and due to the stress of caring for him, Kutuzova's own health began to deteriorate. This forced her to commit Cafiero to another asylum, where he eventually passed away. Following this, Kutuzova returned to Russia. The information is corroborated by sources like Wikipedia's articles on Carlo Cafiero and Olimpia Kutuzova.