The Duke and Duchess of Cambridge "are reconciled to the fact" that their relationship with Harry "can't be put together."
The Duke of York is acused of "rape in the first degree" in a New York court by Virginia Roberts Giuffre.
The court presided by Judge Lewis Kaplan was hearing on a motion by the royal's lawyers to dismiss the civil case against him.
Meghan and the Queen travelled together to Chester on the Royal Train in June 2018.
The Duke of Cambridge faces a "poignant" reminder about his mother when the Duchess of Cambridge becomes Princess of Wales.
Jordan revealed that she believes Giuffre's claims about the Duke of York because of her own run-ins with him.
All three of her portraits will be added to the permanent collection of the National Portrait Gallery, of which the Duchess herself is patron.