(CNN) -- Billionaire philanthropist MacKenzie Scott has filed for divorce from her second husband after less than two years of marriage.

Scott, one of the world's richest people, married Seattle-based science teacher Dan Jewett last year after divorcing Amazon founder Jeff Bezos in 2019.

Scott filed a petition for divorce in the King County Superior Court in Washington State on Monday, according to the Court clerk's office.

The news was first reported by The New York Times on Wednesday.

In 2021, the couple had announced their marital union without much fanfare and through a message on their webpage for the Giving Pledge, a philanthropic organization which encourages the world's richest people to give away a majority of their wealth to charitable causes.

Scott and Jewett appeared aligned in their commitment to philanthropy. Scott has given away billions of dollars as part of a plan to donate a majority of her fortune.

"I am married to one of the most generous and kind people I know — and joining her in a commitment to pass on an enormous financial wealth to serve others," Jewett wrote in his message on Giving Pledge in 2021. "I look forward to the growth and learning I have ahead as a part of this undertaking with MacKenzie."

But Jewett's message seemed to have disappeared from the Giving Pledge site and his name was recently edited out of a Medium post Ms. Scott had written last year about their gifts, The Times reported Wednesday.

Scott, a novelist, also deleted Jewett from her author bio on Amazon, the online retailer that is the source of her vast wealth, according to the NYT.

-- CNN's Rob McLean contributed to this story.