Mary Jo Campbell, mother of Kris Jenner, dies at 91

Mary Jo Campbell, the mother of Kris Jenner, died at age 91. Jenner announced the death on social media Thursday. Jenner, 70, posted that the family had said goodbye to "my beautiful Mommy MJ." No cause of death was immediately provided.

Family tributes Campbell appeared on multiple episodes of the family's reality series since Keeping Up with the Kardashians premiered in 2007. Jenner wrote that Campbell taught the family that family is everything and showed how to love unconditionally.

" She said Campbell gave her a first job at a San Diego store and taught her lessons about work ethics, strength, and confidence. Campbell was the grandmother of Kim, Kourtney, and Khloe Kardashian and of Kendall and Kylie Jenner.