The Duke and Duchess of Sussex could apply for their child to have dual US-UK citizenship.
Harry was born at St Mary's Hospital in London, while Meghan comes from Los Angeles in the States. The couple began dating in the summer of 2016 and announced their engagement 18 months later.
Meghan moved to the UK permanently in early 2018, ahead of her royal wedding on May 19.
The duchess is in the process of becoming a British citizen, but it does take a number of years. It’s not known if she will retain dual nationality or whether she will renounce her US citizenship.
So could the royal baby have dual citizenship?
According to the American embassy in the UK, a child born outside of the United States and in wedlock to a US citizen parent and a non US citizenship, may acquire US citizenship at birth. That's as long as the US parent has lived in America for a period of five years - two of which have to be after the age of 14.
It still hasn't been confirmed by the palace where Meghan is choosing to give birth.
The Duke and Duchess of Cambridge had all three of their children, Prince George, Princess Charlotte and Prince Louis, at the private Lindo Wing at St Mary's Hospital in London.
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