Wojcicki passed away at the age of 56 after a two-year battle with lung cancer.

Wojcicki wore many hats at Google over the years.

Of course, her most significant legacy is likely YouTube itself.

Susan Wojcicki, former YouTube CEO and driving force in Google’s growth story, dies at 56

Wojcicki pushed hard for Google to buy the video site when it was still a small operation.

Under her leadership, YouTube’s advertising revenue swelled into the billions.

Unbelievably saddened by the loss of my dear friend@SusanWojcickiafter two years of living with cancer.

Her impact on our family and the world was immeasurable."

Wojcicki grew up on the Stanford campus before studying history and literature at Harvard.

She later earned MBAs from UC Santa Cruz and UCLA.

She is survived by her husband and four children.

Tragically, their oldest son, Marco, passed away earlier this year at just 19 years old.