She’ll renounce her citizenship. End of story
Really renouncing her tax slave to the IRS status....
I would have thought that a woman marrying into the royal family of a different country would take the citizenship of that country anyway...
“She’ll renounce her citizenship.”
Or, he’ll renounce his.
And, we’ll have another immigrant to support.
And be subject to an expatriation tax, and continued taxation on her US earnings.