宋四家 Sòng sì jiā

Sòng sì jiā set phrase four famous Song calligraphers
Domain: Calligraphy 书法 , Subdomain: Song Dynasty 宋朝
Notes: Su Shi 苏轼, Huang Tingjian 黄庭坚, Mi Fei 米芾, and Cai Xiang 蔡襄