Six Asian monarchies face succession and health challenges

Six Asian monarchies—Thailand, Japan, Malaysia, Brunei, Bhutan, and Cambodia—are all currently ruled by men, with recent events including a cancer diagnosis, a royal death, and the stripping of a princess's titles drawing attention to these royal families. Thailand's King Rama X, the world's wealthiest monarch, faces succession uncertainty after the death of his eldest child, Princess Bajrakitiyabha, while his other potential heirs are barred or doubted due to constitutional and health issues. Japan's Emperor Naruhito leads the world's oldest hereditary monarchy, but his daughter Princess Aiko is ineligible to succeed him, prompting controversial legal revisions. Malaysia rotates its kingship every five years among nine state rulers, currently held by Sultan Ibrahim Iskandar, who commands a private army. Brunei's Sultan Hassanal Bolkiah, the world's longest-reigning monarch, recently stripped his daughter-in-law of royal titles amid divorce rumors. Bhutan's King Jigme Khesar Namgyel Wangchuck, who married a commoner, has a 10-year-old heir, while Cambodia's King Norodom Sihamoni, a former ballet dancer, is unmarried and childless, recently returning from cancer treatment in China.