During his life, he had tamed hundreds of elephants. In 1861, he caught a white elephant and presented it to the Royal family in Thailand. The Thai King conferred on him the title of Khunjunob (King of elephant hunters). A year after his death, in 1939, his nephew R'Leo Knul held the ceremony of 'grave abandoning' and had a tomb built for him in the M'Nong-Laos architectural style.

The tomb of R'Leo Knul himself lies next to his uncle's tomb. Born in 1871, he succeeded Khunjunob as tribal chief, and developed the tradition of elephant hunting and taming in Don Village. R'Leo Knul tamed a white elephant for the late King Bao Dai and helped him form an elephant hunting team named Bao Dai Royal. R'Leo Knul died in 1941 at the age of 70. In 1950, former King Bao Dai held the ceremony of 'grave abandoning' and had a tomb built for him.