Heartbreaking. William Shatner filed for divorce from his wife, Elizabeth Shatner, after 18 years of marriage. Closer can confirm the Star Trek star and his horse trainer wife called it quits on Tuesday, December 10, after tying the knot back in 2001.

William’s divorce from Elizabeth marks the dissolution of his fourth marriage. The 88-year-old was previously married to Nerine Kidd from 1997 to 1999, Marcy Lafferty from 1973 to 1996 and Gloria Rand from 1956 to 1969.

According to sources close to the A-list actor, William and Elizabeth’s divorce is expected to go relatively smoothly considering they signed a prenup before typing the knot almost two decades ago. Insiders told TMZ financial negotiations won’t be too much of an issue considering neither partner will be receiving spousal support, per the terms of the agreement.

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Legal proceedings are expected to go even quicker while in the hands of the lawyers because William and Elizabeth don’t share any children together. He does, however, have three children from previous relationships — Leslie, 61, Lisabeth, 58, and Melanie, 55. We bet the Boston Legal star is relieved considering his net worth is a massive $100 million.

The Twilight Zone actor first met Elizabeth around the early 2000s after they both suffered the loss of their spouses. In 1999, William’s third wife, Nerine, sadly passed away after she accidentally drowned in their swimming pool following years of alcohol and drug abuse. Elizabeth lost her husband, Michael Gleen Martin, in 1997.

At the time, both William and Elizabeth were mourning the loss of their closest loved ones, Elizabeth reached out to the T.J. Hooker actor in a letter of condolence following Nerine’s tragic death. According to Earn the Necklace, it was their shared grief and obsession with horses that eventually made them fall in love.

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Although losing Nerine was and still is heartbreaking for William, he gushed over Elizabeth in an interview with The Guardian in 2014. During his chat, the beloved comedian praised Elizabeth for having a “great sense of humor,” “a great sense of adventure” and for being “very nurturing.”

“I married my wife, Elizabeth, 14 years ago and I was attracted by her beauty first of all, which was an old syndrome for me … and I think I lucked out because she had so many other qualities as well,” he marveled at the time. “That combination of beauty, style, intelligence, humor and loving horses and dogs and children and loving her home and making a home for us, is quite a combination. So I’ve been very lucky because all that happened by accident. Love is what makes the cold universe warm.”

Although it’s over, we hope William and Elizabeth can find their own happiness!