Lo Wai-kwok, the 73-year-old chairman of Hong Kong’s largest pro-business party and a former lawmaker, has announced his engagement to a Cantonese opera actress 42 years his junior, becoming the talk of the city’s political circles. Lo’s engagement to 31-year-old Yemina Yu Chung-yan comes five years after the death of his wife Adelina Wong Siu-chun. The couple, whose wedding will be held in October, are set to add to the city’s growing number of remarriages, which rose from 15,832 in 2019 to...