Consider

https://www.bloomberg.com/news/articles/2020-02-02/even-if-you-weren-t-born-into-nobility-you-can-buy-your-way-in

and

https://www.history.com/news/american-heiress-marry-british-aristocrat

and

https://www.goodreads.com/book/show/15802011-bol-var

adn

https://en.wikipedia.org/wiki/Haemophilia_in_European_royalty

it's quite the dance.