US-born technology executive Sheryl Sandberg has a leading role at Facebook, the latest step in an illustrous career whch has included a long stint at Google and positions within Walt Disney and the World Bank.

We find out some more about the billionaire, and why she has been so pivotal to Facebook's commercialisation. 

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Who is Sheryl Sandberg?

At Facebook she holds the role of chief operating officer and has done since 2008; here's her Facebook profile.

When was Sheryl Sandberg born?

She was born in Washington DC, on August 28, 1969. She grew up in Miami, the daughter of an ophthalmologist and teacher.

How much is her forture?

According to Forbes, it’s a cool $1.6 billion. For a comparison, Mark Zuckerberg, chief executive of Facebook, is worth $74.5 billion.

What happened to her husband Dave Goldberg?

Dave Goldberg, Sandberg's second husband, died in May 2015. Goldberg was the chief executive of tech company SurveyMonkey; they married in 2004 and together they had two children.

[Read more: Sheryl Sandberg's husband dies after hotel gym accident]

In a Facebook post which has been shared more than 400,000 times, Sandberg spoke openly and poignantly about her grief.

How did she meet Mark Zuckerberg? 

Mark Zuckerberg and Sandberg hit it off after meeting at a Christmas party in 2007, according to the New Yorker. After a couple of months of discussion, Zuckerberg - then head of a company with barely any revenue - offered her the job of chief operating officer.

In 2010, three years after Sandberg joined, Facebook became profitable through advertising.  

Sheryl Sandberg

Where was she before Facebook? 

Sandberg spent six years from 2001 to 2007 as a vice president at Google, where she was involved in lucrative online advertising programmes.

She's also a published author

Alongside her illustrious business career, Sandberg has released two books, the second of which, Option B, was published in April this year and focuses on grief and resilience.

Her first book, published in 2013, was called Lean in: Women, Work and the Will to Lead. It received both praise and a backlash, with people criticising how someone so rich could possibly offer advice that could be applicable to all.   

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