1.King Maha Vajiralongkorn – Thailand

King Maha Vajiralongkorn, crowned on 1 December 2016 following the death of his father, is recognised as the wealthiest monarch globally. “His estimated net worth is around $43 billion,” and it is managed by the Crown Property Bureau. His vast portfolio includes prime real estate in Bangkok, major stakes in companies such as Siam Commercial Bank and Siam Cement Group, as well as an extravagant collection of private jets and cars.