Сон Сен
Yun Yat ( ; 1934 – 15 June 1997), alias Comrade At (), was the wife of Son Sen, defence minister of Democratic Kampuchea. On 9 October 1975, the Standing Committee of Communist Party of Kampuchea placed her in charge of information and education inside and outside of the country. In 1977, she was appointed as information minister after Hu Nim's arrest and execution.