Juthavachara Vivacharawongse

Juthavachara Vivacharawongse ( ; born 29 August 1979) is a Thai-American aerospace engineer and former member of the Thai royal family. Born as the first son of then Crown Prince Vajiralongkorn, he fled Thailand after being banished in 1996 along with his younger brothers and mother. He now goes by the anglicised name Max. He has three younger brothers and a younger sister as well as a number of half-siblings from his father's other relationships. After Vajiralongkorn obtained the divorce from his first wife, Juthavachara's parents married in 1994 and their children were presented to the public as members of the royal family.

Two years later, the couple separated in dramatic fashion. The mother fled with the children to London, later they moved to the United States, and they were banished from Thailand. Along with his brothers, Juthavachara lost his royal titles, while their sister was brought back to their father and remained a princess.

His family settled in central Florida where Juthavachara became a Tampa Bay Buccaneers fan. He continued to write letters to his father, then the crown prince. In 2003, during a visit by Vajiralongkorn to Chicago, the brothers confronted their father at the Thai consulate.

Personal life He married American Riya Gough in 2013, and they have a son and two daughters.

In 2025, he attempted to return to Thailand following his younger brother Vacharaesorn's return to Thailand in 2023 and was denied entry.