Sonya Caleffi
Italian serial killer

Sonya Caleffi (born 21 July 1970) is an Italian serial killer. She was suspected of killing 15 to 18 people and convicted of five of them.
Biography
At fifteen, Caleffi began to suffer from depression and anorexia nervosa, but at school, she remained a very quiet girl, with good performance in school.
Between 1990 and 1993, she attended courses to become a professional nurse at the Valduce Hospital of Como. In 1993, she married a carpenter from Cernobbio after being engaged for six months. Continuous quarrels between them lead her to divorce after just a year. She later met a radiologist and went to live with him in Tavernerio, where she finished her job in a state of reclusion at home.
From 1993 to 2000, Caleffi worked at the Valduce Hospital of Como in the departments of surgery general, endoscopy and first aid. From 2000 to 2001 she worked in first aid at Ospedale Sant'Anna of Como. In October 2001, she returned for a month to Valduce Hospital of Como.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jan 18, 2026. The linked authority identifier is Q3964926. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1970, 1990, 1993 and 2000.
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This entry incorporates text from “Sonya Caleffi” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.