Royal Profile: Prince Dasho Khamsum Singye Wangchuck of Bhutan

Prince Dasho Khamsum Singye Wangchuck of Bhutan was born 6 October 1985 the eldest child of Queen Ashi Sangay Choden Wangchuck and third son of Jigme Singye Wangchuck {Source}. He has a full younger sister Princess Ashi Euphelma Choden Wangchuck, as well as a host of half siblings (both older and younger){Source}:

1. King Druk Gyalpo Jigme Khesar Namgyel Wangchuck (1980, from his father's 3rd wife)
2. Princess Ashi Chimi Yangzom Wangchuck (1980, from his father's 2nd wife)
3. Princess Ashi Sonam Dechan Wangchuck (1981, from his father's 1st wife)
4. Princess Ashi Dechen Yangzom Wangchuck (1981, from his father's 3rd wife)
5. Princess Ashi Kesang Choden Wangchuck (1982, from his father's 2nd wife)
6. Prince Dasho Jigyel Ugyen Wangchuck (1984, from his father's first wife)
7. Prince Dasho Jigme Dorji Wangchuck (1986, from his father's 3rd wife)
8. Prince Dasho Ugyen Jigme Wangchuck (1994, from his father's 2nd wife)

Other than this, little is known about him. However, like his elder half brother, he likely had a worldly education. He likely began his studies in Bhutan, then moved to a boarding school in the US before attending school in England like his siblings.