Sheryl Sandberg’s husband Dave Goldberg has died suddenly, according to a post on Facebook written by his brother Robert. Dave’s Facebook profile has been converted to a memorial page.

Robert requested that friends share their memories of Dave on his Facebook page. “No words can express the depth of loss we feel, but we want his children to learn how much he meant to all of you,” Robert wrote.

“In lieu of donations, we want to celebrate his life in a manner that respects the family’s privacy as they cope with this tragic, life changing event: Sheryl, their children, and our family would be grateful if people would post their memories and pictures of Dave to his Facebook profile.”

The post was shared by Mark Zuckerberg to his own profile page. “I hope friends will join me in celebrating his life by sharing your memories of Dave on his proflle [sic.], as his brother Rob suggests,” Zuckerberg added.

Goldberg was the CEO of SurveyMonkey. Sheryl Sandberg is the COO of Facebook.

Update, 4:30 p.m. – SurveyMonkey has confirmed Goldberg’s death, but did not disclose the cause, the New York Times reports. Goldberg was 47.

Photo credit: AP Images. Contact the author of this post: brendan.oconnor@gawker.com.