Per historical documents of the trial, Grace was found guilty and sentenced to a life of confinement, first at an asylum, then at a women's prison in Kingston, Ontario. ... (She was later pardoned, released from prison, and all traces of her vanished.)

Was Grace Marks innocent or guilty?

Grace Marks is said to be Canada's Lizzie Borden, a woman accused in a controversial case of which many thought she was innocent. Indeed, she is ultimately pardoned and released after spending almost 30 years in prison.

Did Grace commit the murders in Alias Grace?

The story fictionalizes the notorious 1843 murders of Thomas Kinnear and his housekeeper Nancy Montgomery in Canada West. Two servants of the Kinnear household, Grace Marks and James McDermott, were convicted of the crime. McDermott was hanged and Marks was sentenced to life imprisonment.