Genesis 35:27-29 Death and burial of Isaac
Jacob came to his father Isaac at Mamre, or Kirjath Arba (that is, Hebron), where Abraham
and Isaac had dwelt. 28 Now
the days of Isaac were one hundred and eighty years. 29 So Isaac breathed his last and died, and was
gathered to his people, being old and full of days. And his sons Esau and Jacob
buried him. NKJV
Mamre, Kirjath-Arba, and Hebron are all the same place.
Isaac was living and died at Mamre (Hebron or Kirjath-Arba).
Isaac was 180 years old when he died.
Isaac was buried by his sons Jacob and Esau in
the cave of Machpelah where Abraham and Sarah, and
Rebekah were buried. [Genesis 49:29-32]