Four Great Calligraphers of early Tang; refers to Yu Shinan 虞世南 (Yú Shì nán), Ouyang Xun 欧阳询 (Ōu yáng Xún), Chu Suiliang 褚遂良 (Chǔ Suì liáng) and Xue Ji 薛稷 (Xuē Jì)
Meaning
TángchūSìDàjiātang2 chu1 si4 da4 jia1
Four Great Calligraphers of early Tang
refers to Yu Shinan 虞世南Yú Shì nán, Ouyang Xun 欧阳询Ōu yáng Xún, Chu Suiliang 褚遂良Chǔ Suì liáng and Xue Ji 薛稷Xuē Jì