Who is the oldest of Kris Jenner’s four children with Robert Kardashian?

Kourtney Kardashian is the oldest of Kris Jenner’s four children with Robert Kardashian.

Kourtney was born on April 18, 1979, in Los Angeles, California. Her younger full siblings are Kim Kardashian, born in 1980; Khloé Kardashian, born in 1984; and Rob Kardashian, born in 1987. Their parents married in 1978 and divorced in 1991.

Kourtney became widely known through Keeping Up with the Kardashians, which premiered in 2007. She later founded the lifestyle company Poosh, whose name is derived from her daughter Penelope’s nickname.

A common mix-up is placing Kourtney after Kim because Kim often received more media attention during the family’s early fame. Birth order, however, makes Kourtney the eldest sibling in the family’s four-child group. Kris Jenner also has two daughters, Kendall and Kylie Jenner, from her later marriage to Caitlyn Jenner.