As was previously reported, Oprah plans to speak with Meghan about the couple's decision to step down as senior members of the royal family, her marriage, motherhood, philanthropic endeavors and how she is handling life under intense public pressure.
Prince Harry will join them for the discussion, focusing on their decision to move to the United States, their future together and expanding their family.
It is unclear whether the couple shared their plans for the interview with the royal family prior to Monday's announcement.
"The Duke and Duchess are no longer working members of the royal family and therefore any decisions they take with regard to media commitments are matters for them," a source previously told ET. "As non-working members of the royal family, they are under no obligation to inform the royal household of such plans."