Rob Kardashian was born in Los Angeles, California, United States to attorney Robert Kardashian and Kris Jenner. Rob Kardashian has three older sisters, Kourtney, Kim, and Khloé. His parents divorced, and his mother married Bruce Jenner in 1991. Through this marriage, Rob Kardashian has two younger half-sisters, Kendall and Kylie Jenner. His father died in September 2003 from esophageal cancer.
