Convicted murderer Michael Allen Cook was sentenced to fifteen years to life this week in Tuolumne County Superior Court.
Judge Eric duTemple handed down the sentence Monday, saying Cook had a clear history of violence.
The body of Cook´s girlfriend, 54-year-old Mary Bisbing, was discovered in late August last year, at a house in the Don Pedro area.
She had been stabbed three times in the chest, according to autopsy results.
The couple had reportedly fought numerous times.
Court officials say Cook will be up for parole in the year 2018.