Sheikh Tamim Bin Hamad Al Thani, the Amir of Qatar, is among world's richest monarchs, with a personal net worth of over $2 billion (around ₹17,390 crore), reports said. Qatari royal family's combined net worth is estimated to be over $335 billion (around ₹29 lakh crore). Sheikh Tamim owns one of the world's most luxurious mega-yachts worth nearly $400 million.