Prince Harry is expected to 'make every effort' to get back to the states and attend his son's fourth birthday party after the King's Coronation on May 6.
Earlier this month, the Duke of Sussex confirmed he will return to the UK for the historic event. But his wife, Meghan Markle, will remain in California with both their children, Prince Archie and Princess Lilibet.
Harry is expected to briefly attend the Coronation ceremony before heading back to the USA for an "intimate" birthday party for Archie, reports the Mirror.