Can ancient monarchs be recognized?

Will not be recognized, because at that time, science and technology is not so developed, rarely see Wang Ye's true colors, and Wang Ye is traveling incognito every time, so few people come out.

In ancient times, the highest feudal ruler was the emperor, followed by the king, then the duke and marquis, and the male and the sixth rank were all feudal nobles. Among them, the king is the most noble and powerful, with his own territory, army, band and etiquette, second only to the emperor, and some emperors have no scenery of kings.

The title of the king was only a popular title in the Ming and Qing Dynasties after Beijing established its capital. The king's name is Wang Ye, and the emperor's name is Long Live Ye, all with Beijing accents. So before the Ming and Qing Dynasties, they were not called sovereigns.