Delphine Boel, 52, a Belgian artist, fought a seven-year legal battle to prove that the former king is her father.
The Duke and Duchess of Sussex launched the site Tuesday evening, but the foundation has been doing work "quietly" since January.
"This is a global crisis," the Duke of Sussex said Tuesday. "A global crisis of hate, a global crisis of misinformation and a global health crisis."
The Duchess of Cambridge showed off honey-colored hair and a sharp outfit in a video promoting the upcoming Wildlife Photographer of the Year ceremony.
"A year later, I would say, yes, I am doing well,” the Duchess of Sussex said.
The royal, 55, has no symptoms but is following government guidelines, a Buckingham Palace spokesman said.
Yao Ming, Shakira, Queen Rania of Jordan and Jack Ma are just a few of the big names attached to the project.
As established media is accused of producing “fake news” by Donald Trump and other world leaders, the 94-year-old monarch’s message was a rare tribute.
Caution: Watching Prince Louis say "amimals" may make your heart burst.
The Duchess of Sussex is suing Associated Newspapers for publishing portions of a handwritten letter she wrote to her estranged father, Thomas Markle.