In 693 BC Duke Xiang married a daughter of the king of Zhou, the nominal ruler of all China, but the Zhou princess died only a year later.[4] In 686 BC Duke Xiang was murdered by his cousin Wuzhi, who usurped the Qi throne but was killed the following year. Prince Xiaobai, another brother of Wen Jiang, ascended the Qi throne, known as Duke Huan of Qi.[5]