The British Royal Family Tree, etc.

 https://www.townandcountrymag.com/society/a20736482/british-royal-family-tree/

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

Of course there is more than one Royal_family on earth.

https://en.wikipedia.org/wiki/Royal_family#Current_royal_families

https://www.infoplease.com/world/social-statistics/kingdoms-and-monarchs-world

https://timesofindia.indiatimes.com/life-style/spotlight/14-royal-families-around-the-world-you-may-not-have-heard-about/photostory/76976464.cms

https://www.insider.com/royal-family-photos-from-around-the-world-2017-7

https://www.washingtonpost.com/news/worldviews/wp/2013/07/22/meet-the-worlds-other-25-royal-families/

https://en.wikipedia.org/wiki/Royal_family#Deposed_royal_families