Paetongtarn Shinawatra, daughter of the divisive former leader Thaksin Shinawatra, became Thailand’s prime minister after receiving a royal letter of endorsement on Sunday.
She was chosen by Parliament on Friday following a court order that removed her predecessor.
She replaces another leader from her Pheu Thai Party at the head of a coalition that includes military parties associated with the coup that deposed the party’s last government.
Paetongtarn is the third Shinawatra to hold the job, after her billionaire father and her aunt Yingluck Shinawatra.
Both were removed from office and forced into exile in coups, although Thaksin returned to Thailand last year as Pheu Thai formed a government.
She received the letter of appointment in a ceremony at the party’s headquarters in Bangkok, attended by senior members of parties in the governing coalition and her father, who has no formal role but is widely seen as the de facto leader of Pheu Thai.
The father and daughter arrived in the same car, holding hands as they walked in together with beaming smiles.
Paetongtarn thanked the king, the Thai people and lawmakers, saying she would perform her duties “with an open mind,” and would “make every square inch of Thailand a space that allows Thai people to dare to dream, dare to create and dare to dictate their own future”.
She takes over days after the Constitutional Court removed Srettha Thavisin after less than a year in office.
The court found him guilty of a serious ethical breach for appointing a Cabinet minister who had been jailed for contempt of court after an alleged attempt to bribe a judge.
Paetongtarn is Thailand’s second female prime minister, after her aunt, and the country’s youngest leader at 37.
Pheu Thai is the latest in a string of populist parties affiliated with Thaksin, who was ousted in a 2006 military coup, which triggered nearly two decades of deep political divisions that pitted a mostly poor, rural majority in the north that supported Thaksin against royalists, the military and their urban backers.
Parties linked to Thaksin won the most seats in every national election from 2001 until 2023 when it lost to the more progressive Move Forward Party.
Pheu Thai was able to form a government after Move Forward was blocked by the military-appointed Senate, partnering with former rivals in what was widely interpreted as a political bargain with the conservative establishment to stop Move Forward from forming a government.
The same day, Thaksin returned from exile and briefly reported to prison for an eight-year sentence on charges related to corruption and abuse of power.
He was moved almost immediately from prison to the hospital on grounds of ill health, and about a week after that, the king reduced his sentence to a single year. He was released on parole in February after spending six months serving time in the hospital.
On Saturday, Thaksin’s lawyer Winyat Chatmontree posted on Facebook that Thaksin was among the convicts granted a royal amnesty by the king on the occasion of his birthday in late July.
It took effect on Sunday, which means Thaksin is free ahead of his original parole schedule.
The amnesty does not protect Thaksin from an ongoing case for defaming the monarchy, which was indicted in June after being originally filed in 2016.