Bangkok: Paetongtarn Shinawatra, the daughter of billionaire former Prime Minister Thaksin Shinawatra, is set to become Thailand’s youngest PM at the age of 37 after winning a crucial parliamentary vote. She will be the fourth member of the hugely influential Shinawatra family after her father, aunt and uncle-in-law to become the PM after frantic negotiations triggered by a court ruling that ousted her predecessor Srettha Thavisin.