Except we don’t want them in USA. We will gladly take her money though. As a US citizen has to pay income tax on worldwide income. Soon they will be a couple without a country. She can’t apply for British citizenship now. You can’t be a US citizen with royalty title.
Canada doesn't want them and I doubt that any other Commonwealth nation does either!
Too that she never heard of, let alone read A MAN WITHOUT A COUNTRY. ;^)
I thought so too, but apparently you can, it was never ratified.
In 1810, Democratic–Republican Senator Philip Reed of Maryland introduced a Constitutional amendment modifying the Title of Nobility Clause. Under the terms of this amendment any United States citizen who accepted, claimed, received or retained any title of nobility from a foreign government would be stripped of their U.S. citizenship. After being approved by the Senate on April 27, 1810, by a vote of 19–5 and the House of Representatives on May 1, 1810, by a vote of 87–3, the amendment, titled “Article Thirteen”, was sent to the state legislatures for ratification. On two occasions between 1812 and 1816 it was within two states of the number needed to become a valid part of the Constitution. As Congress did not set a time limit for its ratification, the amendment is still technically pending before the states. Currently, ratification by an additional 26 states would be necessary for this amendment to be adopted.