Here is a list of the world's richest kings, queens and other royals, according to Forbes�s new ranking.

Thailand's King Bhumibol Adulyadej, worth $30 billion

Brunei's Sultan Haji Hassanal Bolkiah, worth $20 billion

Saudi Arabia's King Abdullah bin Abdulaziz Al Saud, worth $18 billion

UAE's President Sheikh Khalifa bin Zayed al-Nahayan, $15 billion

Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum, worth $4.5 billion

The President of Pakistan Asif Ali Zardari worth $4 Billion, But Still Beggar

htenstein's Prince Hans-Adam II, worth $3.5 billion

Morocco's King Mohammed VI, worth $2.5 billion

Qatar's Sheikh Hamad bin Khalifa al-Thani, worth $2.4 billion

Prince Albert II of Monaco, worth $1 billion

His Highness the Aga Khan, worth $800 million

Oman's Sultan Qaboos bin Said, worth $700 million

Britain's Queen Elizabeth, worth $450 million

Kuwait's Sheikh Nasser Al-Mohammad Al-Ahmad Al Jaber Al-Sabah, worth $350 million

The Netherland's Queen Beatrix, worth $200 million

Swaziland's King Mswati III, worth $100 million.