Khye Bumsa (Wylie: Gyad 'bum bsags)[1] is named in the Sikkimese migration narratives as a 13th-century prince from the Minyak House in Kham in Eastern Tibet.[2][3] His father migrated to the Chumbi Valley along with his family and established a kingdom. Khye Bumsa expanded it further by establishing an alliance with the Lepchas in present-day Sikkim. The Chogyal rulers of Sikkim are said to be the descendants of Khye Bumsa.