A Vienna court convicted and sentenced Estibaliz Carranza earlier today.
Carranza, who has joint Spanish-Mexican citizenship, shot dead her husband in 2008 and her boyfriend two years later, the BBC said.
She chopped up their bodies with a chainsaw and stored their body parts in a freezer before burying them in concrete in the basement of her shop in the Austrian capital.
The Agence France-Presse reported that the remains were discovered by chance during maintenance work in June 2011.
The 34-year-old, dubbed the “Ice Lady” by Austrian media, confessed to the murders in court on Monday, the AFP said.
She will be held in psychiatric care, the AP reported.
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