Kris and Bruce Jenner to Divorce: Kendall Jenner Reacts Via Instagram

— -- Kris Jenner filed for divorce from Bruce Jenner on Monday, officially ending their 23-year marriage.

Their daughter Kendall took to Instagram to remember the couple in happier times.

Posting an image of her parents from the early stages of their relationship, Jenner, 18, did not write a caption, choosing instead to just post an image of a heart.

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Kris Jenner, 58, married the former Olympian, 64, in 1991. They had two children together, Kendall and Kylie, 17. (Because Kylie is a minor, Kris Jenner filed for joint custody of her.)

Last year, the Jenners, who both appear on "Keeping Up with the Kardashians," officially separated.

"We are living separately and we are much happier this way," the couple said in a statement at the time. "We will always have much love and respect for each other. Even though we are separated, we will always remain best friends, and as always, our family will remain our No. 1 priority."