by Zhao in 296 BCE), Song (annexed by Qi in 286 BCE), Lu (annexed by Chu in 256 or 249 BCE). These political changes led to changes amongst the ruling families as well: in 481 BCE, the Tian clan usurped the state of Qi in a coup and replaced the ruling Jiang clan. Meanwhile, the state of Jin, which had been controlled by different noble clans for decades, was partitioned between the Han, Zhao and Wei clans in 403 BCE. See also Five Hegemons (Spring and Autumn period) Former countries in Chinese history Ancient Chinese states Zhou dynasty 7 (number)