Sheryl Sandberg Pens Heartbreaking Birthday Tribute to Late Husband: 'He Was Taken From Us So Suddenly and So

Sheryl Sandberg celebrates her beloved late husband, Dave Goldberg.

Sheryl Sandberg is remembering her late husband, Dave Goldberg, on what would have been his 49th birthday.

The 47-year-old Lean In author took to Facebook on Sunday to share an emotional tribute to Goldberg on what she explained was also Erev Rosh Hashanah, the Jewish New Year, when followers say prayers celebrating the "birthday of the world." Goldberg died suddenly last May while the couple was vacationing in Mexico, after he suffered a head trauma after falling from a treadmill. The two had been married for 11 years, and had two children together.

"As my children and I do every day, we miss him and mourn that he was taken from us so suddenly and so soon," Sandberg writes, sharing a happy pic of the two. "We miss his smile, his generosity, his wisdom, and his love."

WATCH: Sheryl Sandberg Reportedly Dating Video Game Billionaire Bobby Kotick

Sandberg shared that on Erev Rosh Hashanah, people recommit to being better and working harder to be more just, equal, compassionate, and kind -- traits that Goldberg exemplified.

"For all of us who knew and loved Dave, this is the perfect spirit to honor his memory," Sandberg writes. "Dave set an example we all still strive to live up to."

"Dave, the world is a better place for the years you lived -- and we will always celebrate the day of your birth," she continued. "I love you, Dave."

Last June, the Facebook COO wrote about her loss one month after Goldberg's death, noting, "I have lived thirty years in these thirty days. I am thirty years sadder. I feel like I am thirty years wiser."

"I think when tragedy occurs, it presents a choice," she added. "You can give in to the void, the emptiness that fills your heart, your lungs, constricts your ability to think or even breathe. Or you can try to find meaning. .... When I can, I want to choose life and meaning."

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Sandberg is now reportedly dating Activision Blizzard video games billionaire Bobby Kotick. Sandberg and Kotick had reportedly been friends for years, before their friendship turned romantic earlier this year.

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