MacKenzie Scott, the ex-wife of Amazon-founder Jeff Bezos and one of the world's richest women and most generous philanthropists, has married a school science teacher.

Dan Jewett, a teacher at the private Lakeside School, announced the marriage on the website for the Giving Pledge, the movement created by Bill and Melinda Gates and Warren Buffett to encourage philanthropy among the world’s billionaires.

"In a stroke of happy coincidence, 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 a March 6 post under Scott's page on the pledge's website.

He further said : “It is strange to be writing a letter indicating I plan to give away the majority of my wealth during my lifetime, as I have never sought to gather the kind of wealth required to feel like saying such a thing would have particular meaning.”

Jewett said in the letter he's been a teacher for the majority of his life and has never "sought to gather the kind of wealth required" for charity pledge.

Scott, 50, has devoted much of her time recently to philanthropic activity benefiting women-led charities, food banks and Black colleges, among other institutions. Since her divorce, Scott has given away more than $4 billion of her fortune, according to a post she wrote on Medium in December.

Scott is the world's 22nd-richest person with a net worth of $53.5 billion, according to the Bloomberg Billionaires Index.

"Dan is such a great guy, and I am happy and excited for both of them," Bezos said in a statement through an Amazon spokesman. The Wall Street Journal first reported on the marriage.

Bezos, the founder of Amazon.com Inc., is the world's richest person with a $176.6 billion fortune.