Answer
Yes, King Letsie III is a descendant of the Moshesh family. He is the current reigning monarch of Lesotho and the son of King Moshoeshoe II, who ruled from 1960 to 1990. The Moshesh family is the royal house of Lesotho, and they trace their lineage back to King Moshoeshoe I, who founded the country in the early 19th century.