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http://fortune.com/2016/04/21/tqueen-elizabeth-birthday-net-worth/
https://www.businessinsider.com/worlds-biggest-landowners-2011-3#2-king-abdullah-of-saudi-arabia-14
https://www.cnbc.com/2018/08/18/this-royal-familys-wealth-could-be-more-than-1-trillion.html
https://www.biography.com/people/pope-francis-21152349
https://allthingsfinance.net/the-vatican-and-pope-francis-net-worth/
https://www.forbes.com/profile/king-mohammed-vi/#4a677bd41c93
https://www.msn.com/en-ca/news/other/the-top-16-richest-world-leaders-and-their-net-worth/ss-AAvsbov#image=8
https://www.theguardian.com/world/2018/jun/17/thai-king-signs-royal-familys-30bn-fortune-over-to-himself
https://www.msn.com/en-ca/news/other/the-top-16-richest-world-leaders-and-their-net-worth/ss-AAvsbov#image=16
https://www.nytimes.com/2016/10/14/world/asia/thai-king-bhumibol-adulyadej-dies.html
https://www.britannica.com/biography/Qaboos-bin-Said
https://www.bbc.com/news/world-middle-east-14631981
https://www.britannica.com/place/Jordan
https://www.bbc.com/news/world-asia-36041907
https://www.abc.net.au/news/2017-06-23/bhutan-strives-for-happiness-but-at-what-cost/8633424
https://africanexplorermagazine.com/2018/09/11/the-last-kings-of-africa/
https://www.britannica.com/place/Lesotho
https://www.britannica.com/place/Kuwait
https://www.britannica.com/place/Morocco