The Royal Marriages Act of 1772 requires all royal descendants to seek the sovereign's approval for marriage. But the requirements don't stop there—the 1701 Act of Settlement prohibits royals from marrying Catholics. To wed the Queen's eldest grandchild Peter Phillips in 2008, Autumn Kelly converted from Roman Catholicism to Anglicanism so her husband would keep his place as 11th in line for the throne. Soon after Will and Kate's engagement was announced, officials from Buckingham Palace said the Queen was "absolutely delighted" for the couple, which can only mean she approved of Will's choice.
