Why was Ai Weiwei’s family exiled from Beijing during his childhood?

Ai Weiwei’s family was exiled from Beijing because his father, the renowned poet Ai Qing, was officially censured as a "rightist" by communist officials in 1957.12

This occurred during the Hundred Flowers Campaign, a movement that initially encouraged intellectuals to offer criticism of the Chinese Communist Party. When the government subsequently launched an antirightist campaign to punish those who had spoken out, Ai Qing was among those targeted. As a result, the family was sent to remote labor camps in Heilongjiang and later Xinjiang. They were not permitted to return to Beijing until 1976, following the conclusion of the Cultural Revolution.312