Which generation of calligrapher was Wang Xizhi?

Overview of Wang Xizhi

A calligrapher of the Eastern Jin Dynasty, with the courtesy name Yishao and the name Danzhai. His ancestral home was Langya Linyi (now part of Shandong). He later moved to Kuaiji (now Shaoxing, Zhejiang) and lived in seclusion in Shan County in his later years. Jin Ting served successively as secretary Ying, general Ningyuan, and governor of Jiangzhou. Later, he became the internal historian of Kuaiji, leading the general on the right, and was known as "Wang Youjun" and "Wang Kuaiji". His son Wang Xianzhi was also good at calligraphy and was collectively known as the "Two Kings". Since then, there have been numerous calligraphy talents in the Wang family. Dongsheng died in the fifth year of Ping Dynasty and was buried in Jinting Waterfall Mountain (also known as Ziteng Mountain). His fifth generation Sun Heng's residence was Jintingguan, and the ruins still exist.