Phan Xích Long, also known as Hồng Long, born Phan Phát Sanh (1893–1916), was a 20th-century Vietnamese mystic and geomancer who claimed to be the Emperor of Vietnam. He attempted to exploit religion as a cover for his own political ambitions, having started his own ostensibly religious organisation. Claiming to be a descendant of Emperor Ham Nghi, Long staged a ceremony to crown himself, before trying to seize power in 1913 by launching an armed uprising against the colonial rule of French Indochina. His supporters launched an attack on Saigon in March 1913, drinking potions that purportedly made them invisible and planting bombs at several locations. The insurrection against the French colonial administration failed when none of the bombs detonated and the supposedly invisible supporters