Princess Srirasmi, the wife of Crown Prince Vajiralongkorn of Thailand, has resigned her royal position, the palace has announced.
A statement said King Bhumibol Adulyadej had accepted Princess Srirasmi’s written request.
Crown Prince Vajiralongkorn had asked the government to strip his wife’s family of their royally bestowed name.
Seven of her relatives had been arrested in a purge of officials allegedly involved in corruption.
The palace statement, which appeared in the Royal Gazette, read: “Princess Srirasmi, wife of Crown Prince Maha Vajiralongkorn… has written to respectfully resign from her status in the royal family and permission has been granted by His Majesty the King.”
Crown Prince Vajiralongkorn was already known to be estranged from Princess Srirasmi, although they continued to attend official functions together.
Princess Srirasmi’s uncle, a police general, was arrested over accusations of amassing vast wealth through smuggling and gambling rackets.
Four of her siblings and two other relatives have also been held.
Princess Srirasmi would have been expected to become queen when the crown prince succeeded his father.
The pivotal position of the monarchy in Thailand’s political order makes the succession an extremely sensitive issue.
Many aspects still cannot be reported from inside the country.
The strict lese majeste law criminalizes any critical comment about the monarchy.
King Bhumibol, the world’s longest-reigning monarch and a widely revered and unifying figure, has been on the throne in Thailand since 1946.