The Dorji family (Dzongkha: རྡོ་རྗེ་; Wylie: Rdo-rje) of Bhutan has been a prominent and powerful political family in the kingdom since the 12th century AD. The family has produced monarchs, Prime Minister of Bhutan, Prime Ministers, Dzong lords and governors. The fourth king of Bhutan Druk Gyalpo, Jigme Singye Wangchuck, as well as his son the current fifth king of Bhutan Jigme Khesar Namgyel Wangchuck, are also members of the Dorji family and therefore also descendants of the royal family of Sikkim.[citation needed] The Dorji family is also the holder of the Bhutan House estate in Kalimpong, India.