Is Li Ming Sijia?

Yes

1, Li Zibo was a writer, calligrapher and painter of Ming Dynasty in Nancun, known as the "head of the four kings", and later generations called Li, Shen Zhou, Tang Yin "Ming Sijia".

2. Li is one of the important figures in the literary history of Ming Dynasty, and he is famous for his outstanding literary achievements and calligraphy art..