Strictly speaking, this man can only be called a monarch. At that time, the whole country was not unified. He was the grandfather of the first emperor of Qin, King Xiaowen of Qin (302-250 BC). King Zhaoxiang of Qin sat on the throne of the whole country for 56 years. King Zhaoxiang of Qin was 75 years old when he died, which can be regarded as the longest lived emperor in ancient times. If he could live to this high age in ancient times, he would have lived a long life.
However, because of the longevity of King Zhaoxiang of Qin, his two princes were waiting for him to succeed to the throne. After the death of King Qin Zhao, the eldest son was supposed to inherit the throne, but the eldest son died before King Qin Zhao Xiang abdicated. The second son, King Xiaowen of Qin, finally survived to the day when his father abdicated. However, because King Zhao of Qin had been in power for a long time, King Xiaowen of Qin was also quite old. As a result, he died on the third day after he succeeded to the throne.
King Xiaowen of Qin was only in power for three days, which is one of the shortest reigns in history. At that time, it was at the end of the Warring States period. At that time, the state of Qin was very powerful. It was true that it was not willing to leave without doing anything. For example, the famous battle of Changping took place here.
At this time, Ying Zheng, the new successor of the state of Qin, was the first emperor of Qin. He was the son of King Zhuangxiang of Qin and the grandson of King Xiaowen of Qin. It took Ying Zheng ten years to unify the great cause and make himself Emperor. During this period, he made many contributions to the country, such as building the Great Wall, unifying weights and measures, and writing. King Xiaowen failed to create a great cause, but Ying Zheng created a prosperous age and unified the whole country, which can be regarded as the completion of King Xiaowen's last wish.