A source tells ET that Meghan and Harry are expected to stay at William and Kate's country home, Anmer Hall in Norfolk -- which is close to Sandringham -- so they can see 4-year-old Prince George and 2-year-old Princess Charlotte open their stockings from Santa on Christmas morning.
Another event the couple will attend is the Queen's pre-Christmas lunch at Buckingham Palace on Wednesday of this week-- which the Queen throws to spend time with relatives who aren't invited to the more exclusive celebration at her estate -- where Meghan will presumably meet more of Harry's extended family.
While Meghan was invited to tea with the Queen privately at Buckingham Palace in October, the upcoming holiday celebration will be her first official event at the Queen's London residence. Meghan has clearly been embraced by the royal family since her engagement to Harry was announced in November. In an unprecedented move by the Queen, she's the first royal fiancee to be invited to Sandringham.
"Firstly, it's important to stress that this is a completely new departure from Christmas with reference to the royal family," he noted. "Normally, the protocol is pretty strict. In the past, when Kate Middleton was engaged to William and also when Mike Tindall was engaged to Princess Anne’s daughter, Zara Phillips, they didn’t, as [an] unmarried [couple], spend Christmas with the Queen."
"Obviously Meghan’s parents are in the United States, but the main reason [Markle is invited] is clearly that it’s what Harry wished," he continued. "But I wouldn’t be at all surprised if it wasn’t the queen’s idea, simply because, it’s so important to make a new member and a future senior member of the royal family feel welcome, feel at home, and Christmas is the perfect time to do it."