Kris Jenner has 13 grandchildren. (Extra points if you can list them in order of age.) Kourtney Kardashian has four children, Mason, 14, Penelope, 11, Reign, 9, Rocky, 0. Kim has four, North, 10, Saint, 8, Chicago, 6 and Psalm, 4. Rob has one, Dream, 7. Khloé has two, True, 5, and Tatum, 1. Kylie has two, Stormi, 6, and Aire, 2.