Sorry, I put this through two different auto-translators and they both come back with it being *his* death (which I am certain is wrong because I already have found his death record in 1748).
DeepL translates your deciphering as: "On the 11th of December, Valentin Lang died, leaving behind his widow Anna Maria, a member of the Reformed Church; he was buried
by me on the 12th of this month, at the age of 67 years, minus 1 month and 2 days"
Google translates it as: "On the 11th of December, Valentin Lang died, leaving behind his widow Anna Maria, of the Reformed faith, and was buried by me on the 12th of this same month, at the age of 67 years less 1 month and 2 days."
This date matches my information about it being *her* death, as you say. Why are the auto-translators struggling? How would you translate it?