By all accounts, Uber China’s head of strategy and the president of Didi Chuxing have a lot in common. Both are young, highly successful women in positions of power, and both work in the same industry. But one more thing unites them: the two women are also cousins.

Chinese car-hailing app Didi Chuxing announced on Aug. 1 that it will take over Uber's China’s operations. The deal will form a single car-hailing operation in China valued at $35 billion. Uber will take a 5.9 percent stake in Didi; Didi did not disclose the stake it will take in Uber. Uber China's service will continue to operate independently.

The takeover, which will end the fierce competition between the two rivals in the mainland market, has also been described by some as a "family struggle."

Liu Qing, president of Didi Chuxing

Liu Zhen, Uber China’s head of strategy, is the niece of Liu Chuanzhi, founder of Lenovo, whose daughter, Liu Qing, is the president of Didi Chuxing. Liu Chuanzhi himself is the largest shareholder of China Auto Rental, another major car-hailing company in China.

Liu Zhen, Uber China’s head of strategy