That occurred as a series of events between 481 and 379 BCE through which the Tian clan cemented its position as the leading family in Qi.
His successor, Tian Xizi, garnered additional support through providing low-interest loans to the peasants.
In 481 BCE, Tian Xizi's successor Tian Chengzi killed Duke Jian of Qi (and possibly also his father Duke Dao of Qi in 485 BCE), as well as numerous members of the Jiang clan.
In 379 BCE, the former Duke Kang died, thus ending a line that stretched back to the beginning of the Zhou dynasty.
The Tian clan's hold on Qi would continue until the state was conquered by Qin in 221 BCE.