Kourtney Mary Kardashian was born on, April 18, 1979 in Los Angeles, California, USA.
Sister-in-law of Lamar Odom, and Kris Humphries.
Sister of Kim Kardashian, Khloé Kardashian, and Rob Kardashian. Half-sister of Kendall Jenner, and Kylie Jenner. Step-sister of Burt Jenner, Casey Jenner, Brandon Jenner, and Brody Jenner.
Daughter of Robert Kardashian and Kris Jenner. Granddaughter of Mary Houghton, and Arthur Kardashian. Step-daughter of Bruce Jenner.
Her father was of Armenian descent. Her mother has English, and smaller amounts (to varying degrees) of Scottish, Irish, German, French, and Dutch, ancestry.