What is XXX's brothers name?
King Youmiu
King Youmiu of Zhao (Chinese: 趙幽繆王; reigned 235--228 BCE), personal name Zhao Qian, was the penultimate ruler of the state of Zhao during the waning days of the Warring States period of ancient China, although his successor King Jia of Dai only presided over a rump state in Zhao's far north.
King Jia of Dai